Question

Tolong jawab. Buat besok....!!!

Answer 1

K = 22
2 . Π . r = 22
2 .22/7 .r = 22
44/7 .r = 22
r = 22 x 7/44
r = 3,5
d = 7

luas = 1/4 . Π . d2
=1/4.22/7.7.7
=1/2.11.7
=1/2.70
=35