Question

A cone has a base area of 3 in² and a lateral area which is 1.5 times bigger than the base area. The surface area of the cone is _____ in².

4.5

6.0

7.5

9.0

Answer 1

@tafkas77

Answer 2

Hi there, Rebecca! I have a site for you to check out. I use this site all the time for questions like this, because sometimes I forget formulas and things like this. I honestly couldn't explain it any better than that!

http://math.about.com/od/formulas/ss/surfaceareavol_2.htm

Answer 3

I know the answer, but I want to help you get it. :)

Answer 4

okay.

Answer 5

So do you know where to start?

Answer 6

Based on the link I gave you?