<span>Volume = 9 * PI = </span><span><span><span>28.2743338823
</span>
</span>
</span>
<span>Cone Volume = (<span>π<span> • r² •<span> h) ÷ 3
radius^2 = 3 * </span></span></span></span><span>28.274 / (PI * 15)</span>
radius^2 = <span>84.822 / </span><span><span><span>0.2094395102
</span>
</span>
</span>
<span>
<span>
<span>
radius^2 = 404.99</span></span></span>
radius^2 = 405
radius = 20.125
Source:
http://www.1728.org/volcone.htm
It's easy to find the volume of a cube! The equation is:
l x w x h or Length x Width x Height.
Since a cube's sides are all the same size, we can use 5 for all 3 of these values.
5 x 5 x 5 = 125
So, the volume of this cube is 125!
X +21 > 21
x can be anything except 0