caranya kak gimana ya

Bangun Ruang Sisi Datar

V. awal = ⅓ × p × l × t
= ⅓ × 18 × 10 × 12
= 720 cm³

Dibagi 2 , alas nya sebangun

Di bagian X
6 / 12 = p / 18
• p = 9 cm

6 / 12 = l / 10
• l = 5 cm

V. limas X = ⅓ × 9 × 5 × 6
= 90 cm³

Maka
V. prisma Y = 720 - 90 = 630 cm³
[B]

Hai salken ya...........