Tolong bantu jawab, pakai cara ya.

4. luas = s²
s =√ 64 = 8 cm

volume = s³
= 8 x 8 x 8
= 512 cm³    [C]

5.  t = 12, a = 8, b = 6, c = 10 (triple phytagoras)

L = ab + {(a+b+c) x t}
L = 8.6 + {(8+6+10) x 12}
L = 48 + {24 x 12}
L = 48 + 288
L = 336      [A]

4. Luas sisi kubus=s²
√64=8 cm
Panjang rusuk kubus=8 cm
V kubus=s³
8³=512 cm³ (c)

5. L permukaan prisma= 2 x L alas + L selimut
L alas = 8 x 6/2
48/2 = 24 cm²

L selimut = (12 x 6)+(12 x 10)+(8 x 12)
L selimut = 288 cm²

L permukaan prisma = 2 x 24 + 288
48 + 288= 336 cm² (a)