Question

How do I find the surface area of a right circular cone?

Answer 1

Greetings!

"How do I find the surface area of a right circular cone?"...

The formula to find the surface area of a right cone is :

`=\pi r(r+ \sqrt h^2+r^2)`

Lets it out:

`r=5` and
`h=12`


`=\pi(5)((5)+ \sqrt (12)^2+(5)^2)`
Follow PEDMAS.

`=\pi(5)((5)+ \sqrt 169)`

`=\pi(5)((5)+ 13)`

`=\pi(5)(18)`

`=15.7079633(18)`

`=282.743339`

The SA of the cone would be 282.743339.

Hope this helps.
-Benjamin