Question

find the surface area of a cone with diameter of 18 inches and slant height 22 inches.

A. 452.47 inches^2
B. 703.04 inches^2
C. 650.31 inches^2
D. 876.5 inches^2

Answer 1

@Mertsj I got A is that right?

Answer 2

no

Answer 3

its B isnt it, it was either A or B for me, so that leaves me with B is that right?

Answer 4

What formula did you use?

Answer 5

Pythagorean theorem

Answer 6

Better look up the formula for the surface area of a cone.

Answer 7

v=1/3 pie r^2h

Answer 8

I think v stands for volume. We are talking about surface area.

Answer 9

pie r s+ pier^2

Answer 10

Yes. Now use that formula and find the surface area.

Answer 11

I got C

Answer 12

@blurbendy

Answer 13

I think you are guessing. Show some work.