Question

Tolong kerjakan no. 7 dengan cara

Answer 1

1. luas trapesium
= 1/2 x jml sisi sejajar x t
= 1/2 x (12 + 30) x 15
= 1/2 x 42 x 15
= 315 cm^2

2. luas layang layang
d1 = CE = 2 AB = 2 x 15 = 30 cm
d2 = OD + OF = 10 + (30 - 12) = 28 cm

luas = 1/2 x d1 x d2
= 1/2 x 30 x 28
= 420 cm^2

luas total = 315 + 420
= 735 cm^2