Question

Find the area of a circle whose radius is 70 cm.

Answer 1

Explanation:

area of circle=pi×radius²

area of circle=3.14×70²

area of circle=15,386cm²

Answer 2

15,394

Explanation:

The diameter of a circle is always double of the radius

140 = 70 * 2 = 70 (cm) * 2 = 140 (cm)

π * 70^2 = π * 4,900 (cm^2) ≈ 15,394 (cm^2)