Question

Find the missing measure for a right circular cone given the following information.. . Find h if r = 5 and V = 100.. . a)4. b)12. c)31

Answer 1

Volume = pi r^2 (h/3)
100 = 3.14 (25) (h/3)
100 = 78.5 (h/3)
h= 3.82
or
h= 4
Thus,
Best answer is option a) 4.

Answer 2

Answer:

B) 12

Step-by-step explanation:

Find h if r = 5 and V = 100π

First you ser up the equation for volume of a cone: $V=\frac{\pi r^{2} h}{3}$

Then you plug in your variables. In our case that is 5 for radius and 100π for volume.

So set up the equasion like this: $100\pi = \frac{\pi 5^{2}h}{3}$

Now multiply 5 by a power of 2 in order to get 25.

Your equsion should look like this: $100\pi =\frac{25\pi h }{3}$

Multiply both sides by 3.

$300\pi =25\pi h$

Then divide 300π by 25π.

This will leave you with h=12.