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Question

The volume of the cone is 83 cu ft and its base area is 712 sq ft.

The height of the right circular cone is ft.

A
1615
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B
1516
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C
1615
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D
415
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Solution

The correct option is A 1615
Given:
Base area = 712 sq ft = 152 sq ft
Volume of the cone = 83 cu ft

We know that,
Volume of a cone =13 × Base area × Height
83 = 13 × 152 × h
83 = 52 × h
83 ÷ 52 = 52 ÷ 52 x h
h = 83 x 25
h = 1615

Hence, the height of the cone is 1615 ft.

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