Question

calcule a area de cada círculo a. 5,6cm
b. 2,4 cm

Answer 1

A = 2πr²

A = 2π(5,6)²
A = 2π*31,36
A = 62,72 π
A ≈ 196,94 cm²

A = 2π(2,4)²
A = 2π *5,76
A = 11,52 π
A ≈ 36,17 cm²