Find the radius of a right cone with slant height of 21 m and surface area of 232pi..

Answer 1

if the lateral area is 232pi, then

pi rs = 232pi
rs = 232
s^2 = r^2+h^2, so
s = √(r^2+441)

r√(r^2+441) = 232
r = 9.97

So, let's say r=10. Then

a = 10√541 = 232.6

If the total area is 232pi, then use the adjusted formula for that.

Answer 2

What is rs