Jawabanmu

2014-05-15T18:49:50+07:00
1. K =pi x D
132 = 22/7 x D
132 x 7 /22 = D
6 x 7 = D
42 = D

2014-05-15T18:52:31+07:00
1. K= pi x d
132 cm = 22/7 .d
(132 x 7)/22 = d
42 cm = d
jadi jari2 nya 21 cm

2. Lperm kubus = 6 x s x s
162 = 6 x s x s
27 = s^2
s= akar 27