134 dan 135 tolong please

134.

Kll = 2.phi.r
44 = 2 x 22/7 x r
44 = 44/7 x r
r = 7/44 x 44
r = 7

L = phi x r^2
L = 22/7 x 7 x 7
L = 22 x 7
L = 154