Answer:
15,394
Step-by-step 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)
Step-by-step explanation:
area of circle=pi×radius²
area of circle=3.14×70²
area of circle=15,386cm²
