Tolong dijawab ya…
Jawab:
no 7. d = 20 : 2
r = 10 cm
t = 20 cm
V = luas alas x tinggi
= x r x r x t
= 3,14 x 10 x 10 x 20
= 314 x 20
= 6.280 cm³
OPSI D.
no 8. V = 1/2 x a x t x tinggi prisma
= 1/2 x 8 x 8 x 25
= 64/2 x 25
= 32 x 25
= 800 cm³
OPSI B.
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