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ohaa [14]
3 years ago
7

Guanglei works in urban landscaping design. A delivery truck arrived, pouring a cone-shaped pile of gravel 6 feet high with a di

ameter at the base of 8.2 feet. How much gravel was delivered? (Use π=3.14)
Mathematics
1 answer:
Alina [70]3 years ago
7 0

Answer:

105.57 cubic feet.

Step-by-step explanation:

A delivery truck arrived in the construction site and pouring a cone-shaped pile of gravel 6 feet high with a diameter at the base of 8.2 feet.

Therefore, the volume of the cone shaped pile is \frac{1}{3}\pi  r^{2}h, where r = \frac{8.2}{2}=4.1 feet and h = 6 feet.

Hence, V = \frac{3.14 \times(4.1)^{2}\times 6 }{3} =105.57 cubic feet.

So, 105.57 cubic feet of gravel was delivered. (Answer)

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