Penjelasan dengan langkah-langkah:
a ∆ = 28 cm
t ∆= 12 cm
T prisma = 10 cm
v prisma = (½ x 28 x 12) x 10
= (14 x 12) x 10
= 4.920 cm³
p = 28 cm
l = 10 cm
t = (28-12) = 16 cm
V = 28 x 10 x 16
= 280 x 16
= 4.480 cm³
V total = 4.920 + 4.480
prisma
L permukaan
= (½ x a x t) + (kell alas x T)
= (½ x 28 x 12) + ([28+12+20] x10)
= 168 + (60 x 10)
= 768 cm²
balok
= 2x (pl + pt + lt)
= 2 x (280 + 448 + 160)
= 2 x 888
= 1.776 cm²
Lgab = 768 + 1776
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Penjelasan dengan langkah-langkah:
prisma
a ∆ = 28 cm
t ∆= 12 cm
T prisma = 10 cm
v prisma = (½ x 28 x 12) x 10
= (14 x 12) x 10
= 4.920 cm³
balok
p = 28 cm
l = 10 cm
t = (28-12) = 16 cm
V = 28 x 10 x 16
= 280 x 16
= 4.480 cm³
V total = 4.920 + 4.480
= 9.400 cm³
prisma
L permukaan
= (½ x a x t) + (kell alas x T)
= (½ x 28 x 12) + ([28+12+20] x10)
= 168 + (60 x 10)
= 768 cm²
balok
L permukaan
= 2x (pl + pt + lt)
= 2 x (280 + 448 + 160)
= 2 x 888
= 1.776 cm²
Lgab = 768 + 1776
= 2.544 cm²