Question

What is the approximate surface area of the larger cone?

Answer 1

im really lost on how to do this...if someone could please solve and show me step by step on how to get this it would be very appriciated

Answer 2

Surface area = pirs+pir^2

Answer 3

The problem is you don't know the radius of the big cone. Are they similar? you need more information.

Answer 4

yes it says that the cones are similar

Answer 5

Then find the radius of the big cone first by writing a proportion.

Answer 6

is the radius 7 and then multiply 7 and 28 to get 196?

Answer 7

\[\frac{28}{24}=\frac{r}{8}\]

Answer 8

Solve that to find the radius of the big cone.

Answer 9

The radius of the big cone could not be less than the radius of the small cone.

Answer 10

i got 192

Answer 11

For what?

Answer 12

when i solved the equation