Question

Work out the area of this circle.

Give your answer in terms of n and state its units.
14 cm

Answer 1

A = 49 pi cm^2

Explanation:

The area of a circle is given by

A = pi r^2

The radius i 1/2 of the diameter

The diameter is 14

r = 1/2 (14) = 7

A = pi (7)^2

A = 49 pi cm^2

Answer 2

Divide to find the radius.

14 / 2 = 7cm

Area of a circle formula: A = πr²

Solve using the values we are given.

A = π(7)²

A = 49π

Therefore, the answer is 49π cm²

Best of Luck!