mencari luas lingkaran soal a. r=14cm b. r=20cm c. r=35cm d. d=14cm e. d=20cm f. d=42cm

A.22/7 x 14 x 14 = 616 cm ^2
B.3,14x 20 x 20 = 1256 cm^2
C.22/7x 35 x 35 = 3850 cm^2
D.22/7x 7 x 7 = 154 cm^2
E.3,14 x 10 x 10 =314 cm ^2
F.22/7 x 21 x 21 = 1386 cm ^2
Maaf kalau salah