Finding the Area of a CircleDate: 3/25/96 at 11:52:12 From: Sharon Risso Subject: geometry We at the Hosmer in Mrs. Risso's class are studying area. We have been working on finding the area of different shapes. One of the shapes we are going to find the area of is the circle. We are sending this message to you to find out how to do this if there's an easy way. Date: 3/25/96 at 21:4:50 From: Doctor Jodi Subject: Re: geometry Hi there! This is a good question! Have you found the area of polygons? You can divide any polygon into lots of triangles and measure their area. Then if you add up the area of all of the triangles, you get the area of the larger polygon. There are quite a few ways to measure the area of a circle. One way that works well is to construct polygons that are just a little bit bigger than the circle as well as polygons that are a little bit smaller than the circle. Does this make sense? If you need more help or a better explanation, write back. Let us know how it goes! -Doctor Jodi, The Math Forum |
Search the Dr. Math Library: |
[Privacy Policy] [Terms of Use]
Ask Dr. Math^{TM}
© 1994- The Math Forum at NCTM. All rights reserved.
http://mathforum.org/dr.math/