1 4 10 cm cm 14 cm 10 cm 3 cm Luas prisma ...cm2 Luas kerucut cm 2 5 4 cm 30 cm 4cm Luas tabung = ... cm2 Luas kubus = cm 3 0) 6 cm om end 5 cm 10 cm 10 cm 5 cm Luas balok = ... cm Luas limas = ... cm?
Jawaban:
LP tabung = 2 x phi x r x (r + t )
= 2 x 3.14 x 4 x (4 + 30)
= 2 x 3.14 x 4 x 34
= 854.08cm²
LP balok = 2 x ( p x l ) + ( p x t ) + ( l x t )
= 2 x (10 x 5) + (10 x 6) + (5 x 6)
= 2 x 50 + 60 + 30
= 2 x 140
= 280 cm²
LP kubus = S x S x S
= 4 x 4 x 4
= 64 cm²
maaf cmn bisa bantu yang kubus tabung sama balok
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