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= 1/3 x 22/7 x 15 x 25
= 392.8571429
= 393.9
Kerucut :
d= 30 cm r=15 cm
π=22/7
t=25 cm
ditanya
volume?
jawab
V. kerucut = 1/3×luas alas×t
=1/3×(π×r×r)×t
=1/3×(22/7×15×15)×25
=1/3×4.950/7×25
=1.650/7×25
=41.250/7
=5.892,857 cm³