Home  - Basic_P - Pi Geometry

Books Baby Camera Phones Computers Games DVD Electronics Kitchen Magazines Music Garden Software Tools Toys Video Apparel & Accessories Jewelry & Watches Musical Instruments Health & Personal Care Beauty Sports & Outdoors Office Products

e99.com Bookstore

Images

Newsgroups

1-20 of 196    1  | 2  | 3  | 4  | 5  | 6  | 7  | 8  | 9  | 10  | Next 20

A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

Pi Geometry:     more books (26)

Why is pi?: A short treatise on proportionate geometry by Thomas F Black, 1974 The Joy of Pi by David Blatner, 1997-12-01 The Wallis approximation of [pi]: Applications of calculus to other mathematics (UMAP modules in undergraduate mathematics and its applications) by Brindell Horelick, 1989 Pi: A Source Book Bragg Curve Spectroscopy in a 4pi Geometry by D. A.; et al Cegra, 1990 Program guide and workbook to accompany the videotape on the story of PI by Tom M Apostol, 1989 The Wallis approximation of [pi] (UMAP module) by Brindell Horelick, 1979 The Number Pi by Pierre Eymard, Jean-Pierre Lafon, 2004-02-06 Pi - Unleashed by Jörg Arndt, Christoph Haenel, 2001-01-25 Sir Cumference And The Dragon Of Pi (Turtleback School & Library Binding Edition) by Cindy Neuschwander, 1999-04-01 Pi, the reciprocal of seven and trigono/metrix (Essays from Earth/matriX : science in ancient artwork) by Charles William Johnson, 1999 Pi: A Biography of the World's Most Mysterious Number by Alfred S. Posamentier, Ingmar Lehmann, 2004-08-31 The Foundations of Geometry and the Non-Euclidean Plane by G.E. Martin, 1982-03-22 Easy as Pi?: An Introduction to Higher Mathematics by Oleg A. Ivanov, 1998-12-04

lists with details

1. Creative Pi
   My Groups Language Help. Creative Pi. CreativePi@groups.msn.com pi geometry. pi geometry.bmp. pi geometry 2. pi geometry 2.bmp  
   http://groups.msn.com/CreativePi/pirelatedpicturesplease.msnw
   
   Extractions: var nEditorialCatId = 296; MSN Home My MSN Hotmail Shopping ... Money Web Search: var zflag_nid="346"; var zflag_cid="27"; var zflag_sid="4"; var zflag_width="728"; var zflag_height="90"; var zflag_sz="14"; Groups Groups Home My Groups Language ... Help Creative Pi CreativePi@groups.msn.com What's New Join Now Welcome Recommendations ... Tools Pi Related Pictures

2. Re:Sr-90 Source Activity/Geometry
   Sr90 only. Our crew is having a discussion about what the activity, in dpm, would be for 2 pi and 4 pi geometry. Also, if you are  
   http://www.vanderbilt.edu/radsafe/9903/msg00750.html
   
   Extractions: Date Prev Date Next Thread Prev Thread Next ... Thread Index http://www.ehs.uiuc.edu/~rad/radsafe.html ************************************************************************ The RADSAFE Frequently Asked Questions list, archives and subscription information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html Prev by Date: RE: Three Mile Island Information Next by Date: Re: Guideline values for activity in Foodstuffs Prev by thread: RE: Sr-90 Source Activity/Geometry Next by thread: RE: Sr-90 Source Activity/Geometry -Reply Index(es): Date Thread

3. Discovering Pi
   TITLE Discovering pi AUTHOR Jack Eckley, Sunset Elem., Cody, WY GRADE LEVEL/SUBJECT 57, geometry OVERVIEW Many students tend to memorize, without understanding, formulas that we use in geometry  
   http://www.col-ed.org/cur/math/math23.txt
   
   Extractions: TITLE: Discovering Pi AUTHOR: Jack Eckley, Sunset Elem., Cody, WY GRADE LEVEL/SUBJECT: 5-7, geometry OVERVIEW: Many students tend to memorize, without understanding, formulas that we use in geometry or other mathematic areas. This particular activity allows students to discover why pi works in solving problems dealing with finding circumference. OBJECTIVES: The students will: 1. Measure the circumference of an object to the nearest millimeter. 2. Measure the diameter of an object to the nearest millimeter. 3. Explain how the number 3.14 for pi was determined. 4. Demonstrate that by dividing the circumference of an object by its diameter you end up with pi. 5. Discover the formula for finding circumference using pi, and demonstrate it. RESOURCES/MATERIALS: round objects such as jars, lids, etc., measuring tapes, or string and rulers, paper, pencil, calculator ACTIVITIES AND PROCEDURES: 1. Divide class into groups of two. 2. Give materials to student teams. 3. Have student teams make a table or chart that shows name or number of object, circumference, diameter, and ?. 4. Have students measure and record each object's circumference and diameter, then divide the circumference by the diameter and record result in the ? column. 5. Have students find the average for the ? column and compare to other groups in the class to determine a pattern. Students can then find the average number for the class. 6. Explain to the students that they have just discovered pi, which is very important in finding the circumference of an object. (You may wish to give some historical information about pi at this time or have students research the information.) 7. Have students come up with a formula to find the circumference of an object knowing only the diameter of that object, and the number that represents pi. Students must prove their formula works by demonstration and measuring to check their results. TYING IT ALL TOGETHER: 1. Have students write their conclusions for the activities they have just done. Students may also share what they have learned with other members of the class. 2. Give students three problems listing only the diameter of each object and have them find the circumference. 3. Encourage students to share learned knowledge with parents.

4. ACTIVITIES INDEX
   geometry and Measurement Concepts( NCTM Content Standards and NCEE Standard M2) Students experiment with a simulation to get an approximation of pi.  
   http://www.shodor.org/interactivate/activities
   
   Extractions: These activities listed below are designed for either group or individual exploration into concepts from middle school mathematics. The activities are Java applets and as such require a java-capable browser. The activities are arranged according to the NCTM Principles and Standards for School Mathematics and the NCEE Performance Standards for Middle School Number and Operation Concepts (NCTM Content Standard and NCEE Standard M1) Geometry and Measurement Concepts (NCTM Content Standards and NCEE Standard M2) Function and Algebra Concepts (NCTM Content Standard and NCEE Standard M3) Probability and Data Analysis Concepts (NCTM Content Standard and NCEE Standard M4) Each activity comes with supplementary What How , and Why pages. These pages are accessed from the activity page. Each will open in a new window, when its button is pressed.

5. History Of Mathematics - Table Of Contents
   Topics include background in Babylonian, Euclid, Al'Khwarizmi, pi, and trigonometry. Also has recreations and java chat.  
   http://members.aol.com/bbyars1/contents.html

6. Areas, Volumes, Surface Areas
   textAreas, Volumes, Surface Areas. (pi = pi = 3.141592 ) textAreas. textcircle = pi r 2. textellipse = pi r 1 r 2. texttriangle = (1/2) bh.  
   http://www.math2.org/math/geometry/areasvols.htm
   
   Extractions: pi = [pi] = 3.141592...) [text:rectangle] = ab [text:parallelogram] = bh [text:trapezoid] = h/2 (b + b [text:circle] = pi r [text:ellipse] = pi r r [text:triangle] = (1/2) b h [text:equilateral triangle] = (1/4) [text:triangle given SAS] = (1/2) a b sin C [text:triangle given a,b,c] = [sqrt][s(s-a)(s-b)(s-c)] [text:when] s = (a+b+c)/2 ([text:Heron's formula])

7. Approximating Pi Using Geometry
   Approximating pi using geometry I need to know a simple method to find the approximate value of pi using elementary geometry. Ghosh  
   http://rdre1.inktomi.com/click?u=http://mathforum.org/library/drmath/view/55034.

8. Circles
   origin the center of the circle pi ( ) A number, 3.141592 , equal to (the circumference) / (the diameter) of any circle. Area of Circle area = pi r 2.  
   http://www.math2.org/math/geometry/circles.htm

9. Space Figures And Basic Solids
   If L is the length of a cylinder, and r is the radius of one of the bases of a cylinder, then the volume of the cylinder is L × pi × r 2 , and the surface  
   http://www.mathleague.com/help/geometry/3space.htm
   
   Extractions: Surface area ... Math Contests School League Competitions Contest Problem Books Challenging, fun math practice Educational Software Comprehensive Learning Tools Visit the Math League A space figure or three-dimensional figure is a figure that has depth in addition to width and height. Everyday objects such as a tennis ball, a box, a bicycle, and a redwood tree are all examples of space figures. Some common simple space figures include cubes, spheres, cylinders, prisms, cones, and pyramids. A space figure having all flat faces is called a polyhedron. A cube and a pyramid are both polyhedrons; a sphere, cylinder, and cone are not. A cross-section of a space figure is the shape of a particular two-dimensional "slice" of a space figure. Example: The circle on the right is a cross-section of the cylinder on the left. The triangle on the right is a cross-section of the cube on the left. Volume is a measure of how much space a space figure takes up. Volume is used to measure a space figure just as area is used to measure a plane figure. The volume of a cube is the cube of the length of one of its sides. The volume of a box is the product of its length, width, and height.

10. Area And Perimeter
    Area of a Circle. The area of a circle is pi × r 2 or pi × r × r, where r is the length of its radius. pi is a number that is approximately 3.14159. Example  
    http://www.mathleague.com/help/geometry/area.htm
    
    Extractions: Area of a parallelogram ... Math Contests School League Competitions Contest Problem Books Challenging, fun math practice Educational Software Comprehensive Learning Tools Visit the Math League The area of a figure measures the size of the region enclosed by the figure. This is usually expressed in terms of some square unit. A few examples of the units used are square meters, square centimeters, square inches, or square kilometers. If l is the side-length of a square, the area of the square is l or l l Example: What is the area of a square having side-length 3.4? The area of a rectangle is the product of its width and length. Example: What is the area of a rectangle having a length of 6 and a width of 2.2? The area of a parallelogram is b h , where b is the length of the base of the parallelogram, and h is the corresponding height. To picture this, consider the parallelogram below: We can picture "cutting off" a triangle from one side and "pasting" it onto the other side to form a rectangle with side-lengths

11. DOE Document - A 4$pi$ GEOMETRY DEVICE FOR STUDYING TIME CORRELATION
    A 4$pi$ geometry DEVICE FOR STUDYING TIME CORRELATION OF PHOTONS EMITTED BY VARIOUS GAS ATOMS. $$  
    http://rdre1.inktomi.com/click?u=http://www.osti.gov/energycitations/product.bib

12. The Topic Pi
    decimal. pie chart. double helix. pi cartoon. fractal. circle. pi video. circumference. pie. geometry. tessellation. pi Day . 159 pm March 14. pi.  
    http://www.42explore.com/pi.htm
    
    Extractions: The Topic: Pi Easier - Pi sounds like pie and is equal to about 3.1416. In math, this is the ratio of the circumference of a circle to its diameter. In other words, pi is a number that equals the quotient of the circumference of a circle divided by its diameter. Many people celebrate pi by holding a Pi Day on March 14th or 3/14. Harder - The Greek letter pi represents the number by which the diameter of a circle must be multiplied to obtain the circumference. Pi is an irrational number. That is, it cannot be written as a simple fraction or as an exact decimal with a finite number of decimal places. However, you can increase the number of digits until you reach a number as near to pi as needed. Mathematicians with computers have calculated pi to millions of decimal places. Pi is used in several mathematical calculations. The circumference of a circle can be found by multiplying the diameter by pi (c = pi X d). The area of a circle is yielded by multiplying pi by the radius squared (A = pi X r-squared). Pi is also used to calculate the area of a circle, and the volume of sphere or a cone.

13. Conjectures In Geometry: Circumference And "Pi"
    Circumference and pi Conjecture. Explanation The circumference of a circle is the length around the edge of the circle. The diameter is a chord that passes through the center of the circle. Back Conjectures in geometry Conjecture List or to the Introduction  
    http://www.geom.umn.edu/~dwiggins/conj49.html
    
    Extractions: The circumference of a circle is the length around the edge of the circle. The diameter is a chord that passes through the center of the circle. The radius is a segment from the center to any point on the circle. You are able to find the circumference once you have the measure of the diameter or the radius. We see that to find the circumference of a circle we need to use the number "pi". One exploratory way to find pi would be to measure the circumference of circles and divide by their diameters, respectively. You will find that pi is approximately equal to 3.14, or 22/7. Click here to further explore pi. Conjecture ( Circumference If C is the circumference and D is the diameter of a circle, then there is a number p such that C=pD. Since D=2r, where r is the radius, the C=2pr. Key Curriculum Press can provide demo versions of Geometer's Sketch Pad Sketchpad for Mac, Version 3.00

14. The Golden Geometry Of Solids Or Phi In 3 Dimensions
    The online book is worth browsing through as it has lots more interesting geometry about space The angles in the rhombs in the Penrose tiling are 2/5 pi and 3  
    http://www.mcs.surrey.ac.uk/Personal/R.Knott/Fibonacci/phi3DGeom.html
    
    Extractions: Some other relationships between these shapes... More The five regular solids (where "regular" means all sides are equal and all angles are the same and all the faces are identical) are called the five Platonic solids after the Greek philosopher and mathematician, Plato. Euclid also wrote about them. For more information on these two famous Greeks, see the

15. Two-dimensional Geometry And The Golden Section
    r = Phi 2 theta / pi. or r = M theta where M = Phi 2/pi. Such spirals, where The above is adapted from HSM Coxeter s book Introduction to geometry, 1961, page 165  
    http://www.mcs.surrey.ac.uk/Personal/R.Knott/Fibonacci/phi2DGeomTrig.html
    
    Extractions: On this page we meet some of the marvellous flat (that is, two dimensional) geometry facts related to the golden section number Phi. A following page turns our attention to the solid world of 3 dimensions. The icon means there is a Things to do investigation at the end of the section. Phi and 2-Dimensional geometry Constructing the golden section: phi

16. Our Geometry/Pi Page
    HOUSE OF pie pi!!! Welcome one and all to our GeeI'm-A-Tree (geometry) and Trigonometry page. This is where you can get a list of Gee-I'm-A-Tree and Trigonometry postulates, theorems, laws, etc. Oh  
    http://www.geocities.com/houseman_christina
    
    Extractions: Oh, and of course, plenty of Pi... enjoy! Here are the links to the rest of our pages: *Definitions of Geometry Terms* *Postulates* *Theorems* *Pi* ... *Examples of How To Do Geometry Problems* *Definitions of Trigonometry Terms* *Examples of How To Do Trigonometry Problems* *Introduction to Geometry* *Geometry Formulas and Facts* *Euclidian Axioms and Theorems* *Trigonometry and Astronomy* Need some help with your homework?

17. Geometry Classes
    geometry Classes. Working in groups, students were asked to find solutions to the problems presented at seven stations. Back to the pi Day Page.  
    http://www.nvnet.org/nvhs/dept/math/pi/geometry.html
    
    Extractions: Working in groups, students were asked to find solutions to the problems presented at seven stations. They spent approximately ten minutes at each station over a period of two days. The stations were positioned in the classroom so that students could move from station to station in a clockwise fashion.

18. Pi Mu Epsilon
    pi Mu Epsilon. Purpose of the Organization of Interactive OnLine geometry. Computational geometry Resources. geometry Center. geometry Forum. geometry in Action  
    http://www.tamiu.edu/student/pimuep
    
    Extractions: P i M u E psilon Purpose of the Organization Listing of Officers Adriana Chavarria, President Sonia Rodulfo, Vice-President Irma A. Ramirez, Secretary Deborah Cuellar, Treasurer Irma I. Ramirez, Public Relations Miguel San Miguel, Reporter Follow these links for math related resources on the WWW: Mathematics Organizations

19. Pi Day
    In geometry classes, students spent the two days working on investigations at seven stations . What better way to share the values of pi!  
    http://www.nvnet.org/nvhs/dept/math/pi.html
    
    Extractions: While the middle of March is most renown as the ides of March, for the Mathematics Department of Northern Valley Regional High School March 14 (3.14) is "Pi Day". Since pi to four decimal places is 3.1415, March 15 is "Little Pi Day". To celebrate these days, mathematics teachers organized some unconventional activities revolving around the importance of pi. In Geometry classes, students spent the two days working on investigations at seven "stations". Twice during the course of the day, three teachers mixed their classes so that groups working at the "stations" comprised students from different ability groups. What better way to share the "values" of pi! Pizza "pis" were seen in several teachers' classes, as well as "pi" snacks (sugar free, of course). Pi Day is the invention of Demarest mathematics teacher Pat Karpinski, and each year it is becoming a bigger and bigger event. This year, mathematics teachers Debra Baker, Danielle DeFuria, Jim Hall, Mike McElduff, Ray Siegrist, and April Vella participated in the Pi Day activities, as could be evidenced their Pi Day T-Shirts. (Sorry, these are collectors' items and cannot be purchased.) Anyone interested in receiving worksheets, etc. should contact

20. Math Forum: Basden: The Derivation Of Pi
    Math Forum Ask Dr. MathI need to know a simple method to find the approximate value of pi using elementary geometry. Approximating pi using geometry. Date  
    http://mathforum.org/te/exchange/hosted/basden/pi_3_14159265358.html

A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

1-20 of 196    1  | 2  | 3  | 4  | 5  | 6  | 7  | 8  | 9  | 10  | Next 20