Question

Which of the following gives the area, A, of a circle with a diameter of 6? A A=π(3) B A=π×2(3) C A=π(3)2 D A=π×2(3)2

Answer 1

C

Explanation:

the area (A) of a circle is calculated as

A = πr² ( r is the radius )

here diameter = 6 , then r = 6 ÷ 2 = 3 , so

A = π(3)² → C