A cone is created by rotating a right triangle with leg length 3 and leg length 4 about the leg of length 4. Its surface area is pi times what number?

Guest Oct 18, 2020

#1**+1 **

A = pi r ( r + sqrt(r^2 + h^2) ) r = 3 h = 4

sub those in to get A = 24 pi

ElectricPavlov Oct 18, 2020