Question

The radius of the circle above is 10 in. What is the circumference of the circle? (Use = 3.14. for π)

Answer 1

Circumference of Circle --> $2\pi r$

• $\pi$ = 3.14
• r: length of radius --> 10in

Now compute with the known information plugged into the equation

   --> $2(3.14) * 10) = 6.28*10 = 62.8in^2$

Thus the circumference of the circle is 62.8 square inches.

Hope that helps!