1) V = (18(12(7)
= (18(84)
= 7.056 CM³
LP = 2(18(12) + (18(7) + (12(7)
= 2(216 + 126 + 84)
= 2(216 + 210)
= 2(426)
= 852 CM²
2) 3/4(20(10(2)
= 3/4(20(20)
= 3/4(400)
= 3(400)/4
= 1.200/4
= 300 M³
3) V = R³
= (25(25(25)
= (25(625)
= 15.625 CM³
4) V = (15(4(9)
= (15(36)
= 540 CM³
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Verified answer
1) V = (18(12(7)
= (18(84)
= 7.056 CM³
LP = 2(18(12) + (18(7) + (12(7)
= 2(216 + 126 + 84)
= 2(216 + 210)
= 2(426)
= 852 CM²
2) 3/4(20(10(2)
= 3/4(20(20)
= 3/4(400)
= 3(400)/4
= 1.200/4
= 300 M³
3) V = R³
= (25(25(25)
= (25(625)
= 15.625 CM³
4) V = (15(4(9)
= (15(36)
= 540 CM³