# Math

posted by Kimmy

The rim of the basket has a radius of 9 inches. What is the approximate circumference of the basket? Use pi equals 3.14. Explain why 3.14 is used when finding the circumference of a circles.

1. Kimmy

*** Explain why 3.14 is used when finding the circumference of circles.

2. Steve

thousands of years ago it was learned that the ratio of the circumference to the diameter of a circle is pi = 3.14159265...

This is true for all circles:

c = pi * d
or,
c = 2pi * r

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