Plizzzzzzzzzz dijawab no 20

(13+6)x8:2=19x8:2=76 cm²

Luas trapesium = 1/2 (a + b) . t
Dalam soal diketahui : b = 13, t = 8
a = √(10^2 - 8^2) = √(100 - 64) = √36 = 6

Luas = 1/2 (6 + 13) x 8 = 1/2 x 19 x 8 = 19 x 4 = 76 cm^2