Question

If the circumference of a circle is 201 centimeters what is the radius of the circle (to the nearest whole number)? Use 3.14 for pi
A) 32 centimeters
B) 128 centimeters
C) none
D) 16 centimeters
E) 64 centimeters

Answer 1

Formula for circumference:  C = 2pi*r

This becomes 201 cm = 2(3.14) r

Divide both sides of this eqn by 6.28:

201
------- = r  = 32 cm (approx).
6.28