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dalvyx [7]
3 years ago
13

Need help on both these questions please thank you

Mathematics
1 answer:
Elena L [17]3 years ago
8 0
Remember that the volume of a cone is 1/3 \pi r^2h
Thus;

1. 2^2 = 4
4pi(7) = 28pi
28/3 = 9 \frac{1}{3}
ANS = 9 \frac{1}{3}  \pi or ~29.32

2. d = 18, r = 9
9 ^ 2 = 81
81pi (18) = 1458pi
1458 / 3 = 486
ANS = 486 \pi or ~1526.81

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