Question

What is the diameter of a circle with a 66 inch circumference??

Answer 1

`C = 2\pi r\\\\(C)/(2\pi ) = (2\pi r )/(2\pi ) \\\\(C)/(2\pi ) = r\\\\\\(66)/(2\pi ) = r\\\\21.01 = r`

Therefore, the diameter of the circle is about 21.01 in.