Diketahui panjang 15 lebar 10 luas permukaan 550 Tentukan: A.volume B.panjang seluruh rusuk C.tinggi

Lp = 2 x (pl + pt + lt)
550 = 2 x (15.10 + 15t + 10t)
550 = 2 x (150 + 25t)
550 = 300 + 50t
50t = 550 - 300
50t = 250
t = 250/50
t = 5

v = p x l x t
v = 15 x 10 x 5
v = 150 x 5
v = 750

panjang seluruh rusuk
= 4 x (p + l + t)
= 4 x (15 + 10 + 5)
= 4 x 30
= 120