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BO NGASAL
PAKE CARANYA
BO NGASAL
PAKE CARANYA
19.V Limas=1/3 x L alas x tinggi Limas
=1/3 x(8 x 15) x 24
=1/3 x 40 x 24
=1/3 x 960
=320 cm³
20.V kerucut=8.316 cm³
V. =1/3 π r² t=8.316 cm³
=1/3 x22/7 x r² x 18=8.316
r² =8.316 x 3/1 x 7/22 : 18
r² =441
r=√441
r=21 : 2 = 10,5
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