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Sergio [31]
3 years ago
10

How to find R of a cone?

Mathematics
2 answers:
tresset_1 [31]3 years ago
6 0
If you are given the volume then
V=(1/3)hpir^2
h=height
r=radius
V=volume
solve for r

times 3 both sides
3V=hpir^2
dvivide both sides by hpi
\frac{3V}{h \pi}=r^2
sqrt both sides
\sqrt{\frac{3V}{h \pi}} =r
bonufazy [111]3 years ago
4 0
Multiply the volume by 3.
Multiply the height by π, which is a numeric constant that begins 3.14 and never terminates.
<span>Divide the tripled volume by the product of the height and π.
</span><span>Find the square root of the result from the 3rd step
</span>
hope this helped:)
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The radius of a sphere is increasing at a rate of 5 mm/s. How fast is the volume increasing (in mm3/s) when the diameter is 40 m
jeka94

9514 1404 393

Answer:

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Step-by-step explanation:

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<em>Additional comment</em>

By comparing the derivative to the area formula for a sphere, you see that the rate of change of volume is the product of the area and the rate of change of radius. This sort of relationship will be seen for a number of different shapes.

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