The volume of a cylinder is 770 cm. It's height is 5 cm. Find its approximate radius.
7 cm
14 cm
9 cm
3.5 cm

Hey there,

The equation for the volume of a cylinder is V = πr²h.

The first step into finding the radius is to plug in what you already know into the equation:

We divide both sides by 5:

Now we divide both sides by π:

Finally we just do the square root of 49.0197224723:

The radius therefore would be about 7cm.

Hope I helped,

Amna

the answer is 99.