18) A cone with a height of 9 cm has a volume of 48π cm3. What is the radius of the cone? (The volume of a cone is given by the formula V = 1/3πr2h.) A) 2 cm B) 3 cm C) 4 cm D) …

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asked Sep 6, 2021 35.6k views

1 Answer

AdrianEddy · Answer 1 · 2021-09-11T17:22:55+0000

Answer:

C) 4 cm

Explanation:

we know that

The volume of the cone is given by the formula

$V=(1)/(3)\pi r^(2) h$

we have

$V=48\pi\ cm^3$

$h=9\ cm$

substitute the given values

$48\pi=(1)/(3)\pi r^(2) (9)$

simplify

$48=3r^2\\r^2=16\\r=4\ cm$