Question

Tolong jawab soal no.15 ini dengan caranya ya

trims..

Answer 1

L.1 = (d¹.d²)/2
= (14 . 20)/2
= 280/2
= 140cm²
L.2 = (d¹.d²)/2
= (8 . 20)/2
= 160/2
= 80cm²
L.arsiran = L.1 - L.2
= 140-80
= 60cm²