How do I find the radius of v = pi*r^2*h

Question

tyteen4a03 · Answer

This is the equation of a circular cylinder, where r is the radius of the base circle.

anonymous · Answer

$$v = \pi{r^2}h$$
v = 5m^3 and h = 1.5m

tyteen4a03 · Answer

@joshhhunt Just plug in the values and solve. :)

anonymous · Answer

$$\frac{ V }{ \pi h } = r^{2}$$
Take the square root of both sides and you'll get the radius.

anonymous · Answer

How do I go about getting the square root of both sides?

anonymous · Answer

Ok so I have 125  = $$125 = \pi \times r^2 \times 1.5m$$ I still don't understand how I find out the value of r

anonymous · Answer

Look at my formula. You have the volume V and the height h. Input them:
125 / (Pi * 1.5) then take the square root of that:
$$\sqrt{\frac{ 125 }{ 1.5 \pi }}$$

anonymous · Answer

So I have 5.568... Am I right or have I done it wrong?

anonymous · Answer

Wait no I cubed it. Actually it should be 3.141...?

anonymous · Answer

sqrt(125 / (1.5 * pi)) ~ 5.15

Remember to use the parentheses. ; )