bantu jawab no 35 beserta caranya

K = 2(p + l)
16 + 8√2 = 2( 6 + √2 + l)
(16+8√2) / 2 = 6 + √2 + l
8 + 4√2 = 6 + √2 + l
8 + 4√2 - 6 - √2 = l
l = 2 + 3√2 cm

A