Me podrían ayudar con esto a sacar el área de cada una de las circunferencias por favor es para mañana?

Tenemos.

Area = π * r²

r = 12m

π = 3, 14

Area = 3, 14 * (12m)²

Area = 3, 14 * 144m²

Area = 425, 16m²

r = 15m

Area = 3, 14 * (15m)²

Area = 3, 14 * 225m²

Area = 706, 5m²

Diametro = 27, 5m

Radio = diametro / 2

Radio = 27, 5m / 2

r = 13, 75m

Area = 3, 14 * (13, 75m)²

area = 3, 14 * 189, 0625m²

Area = 593, 65625m²

Diametro = 39, 95m

Radio = 39, 95m / 2

r = 19, 975m

Area = 3, 14 * (19, 975m)²

Area = 3, 14 * 399, 000625m²

area = 1252, 8619625m².