Matematika bantuuuuuu pelis, mtk smp​

otissimonisulv – April 06, 2023

bantuuuuuu pelis, mtk smp​ Jawab:
1.
Lp balok = 208 cm²
p (panjang) = 8 cm
l (lebar) = 6 cm
Lp = 2 x (p x l + p x t + l x t)
208 = 2 x (8 x 6 + 8 x t + 6 x t)
208 = 2 x (48 + 14t)
208 = 96 + 28t
208 - 96 = 28t
t = 112 / 28 = 4 cm

Volume balok = p x l x t = 8 x 6 x 4 = 192 cm³

2.
Lp = 2 x luas alas + keliling alas x tinggi
Lp = 2 x (½ x 9 x 12) + (12 + 9 + 15) x 30
Lp = 108 + 1.080 = 1.188 cm²

Volume = luas alas x tinggi
Volume = ½ x 9 x 12 x 30
Volume = 1.620 cm³

Semoga membantu :) [answer.2.content]