Question

Surface area & volume of this cone? What'd I do wrong? e.e

Answer 1

Review the definition of height for cone. I think you have used "slant height"

Answer 2

You have enough information to calculate the altitude or height.

Answer 3

yes volume of a cone =(1/3) pi r^2 h where h = perpendiclkar haight of the cone

Answer 4

use pythagoras to find the altitude

Answer 5

That is a good idea.

Answer 6

Thanks!

Answer 7

Use radius and slant height to calculate the real height.

Answer 8

My compliments to your drawing, it was very helpful in assisting you.

Answer 9

:D