Visual Proof for Area of a Circle

This worksheet demonstrates the area of a disk (A.K.A. circle) by unrolling it into a simple triangle & finding the triangle's area. Size of the circle can be adjusted as well, for your pleasure. If you are in need for better proof, go to [url]https://en.wikipedia.org/wiki/Area_of_a_disk[/url].

 

Yehchan Yoo

 
Resource Type
Activity
Tags
area  circle  pi  triangle  unroll 
Target Group (Age)
11 – 14
Language
English (United States)
 
 
 
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