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16-02-2022
Mathematics

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The volume of a cone-shaped hole is 21πft3 If the hole is 7ft deep, what is the radius of the hole?

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ashish4112119 ashish4112119

16-02-2022

Answer:

r = 3ft

Step-by-step explanation:

example of a cone-shaped hole is a funnel

V = 1/3 • π • r² • height

21π = 1/3 • π • r²• height

(21)3 = (1/3 • r² • 7)3

63/7 = (r² • 7)/7

√9 = √r²

r = 3

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