What is the radius of a circle with circumference of 22m?

1 Answer
Apgt512 · George C.
Nov 16, 2015

Approximately #3.5# m

Explanation:

The circumference of a circle C is equal to:
#C=2*pi*r#
That's because the diameter of a circle fits #pi# times in the circumference. So if you solve #r#
#r=C/(2*pi)=22/(2*pi)~~3.5#

(using the approximation #pi ~~ 22/7#)

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