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Umnica [9.8K]
3 years ago
15

Not sure if i chose the right one?

Mathematics
1 answer:
ser-zykov [4K]3 years ago
8 0

Answer:

113.04 ft³ is correct

Step-by-step explanation:

The volume (V) of a cone is calculated as

V = \frac{1}{3}πr²h ( r is the radius and h the height )

There are 2 cones to be summed one with h = 7 , the other with h = 5

Thus

V = \frac{1}{3} π × 3² × 7 + \frac{1}{3}π × 3² × 5

   = \frac{1}{3} × 3.14 × 9 (7 + 5)

   = 3.14 × 3 × 12

   = 113.04 ft²

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