3 years ago

The volume of the cone is 130 units^3. Solve for x. Height: 13 Radius: x

1 answer:

3 0

V=(1/3)hpir^2
v=130
h=13
r=x

130=(1/3)(13)pix^2
times both sides by 3
390=13pix^2
divide both sides by 13
30=pix^2
divide both sides by pi
30/pi=x^2
sqrt both sides
x≈3.09
radius is abou 3 units

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