Question

find volume if r = 4 and the slant and height of the cone is 5 helpp

Answer 1

Using Pythagorean we have
\(h^2+4^2=5^2\)
\(h^2=9\)
\(h=3\)
Then the volume is
\(V=\frac{1}{3}\pi r^2h=\frac{1}{3}\pi (4)^2(3)=16\pi\)