OpenSAT - Free SAT Question Bank with Endless Possibilities OpenSAT

Question #N619

A circle has a circumference of 12π. What is the area of the circle?
A. 12π
B. 36π
C. 144π
D. 144
Click to reveal answer
Correct Answer is: B

The circumference of a circle is given by the formula C = 2πr, where r is the radius of the circle. We are given that C = 12π, so 12π = 2πr. Dividing both sides by 2π, we get r = 6. The area of a circle is given by the formula A = πr², so A = π(6)² = 36π.