Question

Tolong bantu ya pakek cara jga ya...

Answer 1

3.)volume prisma
=la×t
=(½×a×t)×t
=(½×25×20)×42
=250×42
=10.500cm³

5.)luas permukaan balok
=2(pl+pt+lt)
=2(18×6+18×9+6×9)
=2(108+162+54)
=2(324)
=648cm²

maaf kalo sala