Question

what is the surface area of the right cone below?

Answer 1

http://media.apexlearning.com/Images/200701/04/6ae07650-f560-43cd-9d56-c3c55b3a9b39.gif ( Height is 15 )

Answer 2

not 14

Answer 3

The surface area of a cone is SA = π*R^2 + π*R*L I can not see the picture...

Answer 4

refresh the URL, you will see the pic

Answer 5

Better.

Answer 6

So using the formula
π*R^2 + π*R*L
we get
π*64 + π*8*14

Answer 7

Which is 552.9 or 176 π

Answer 8

i don't see non of those answers in my answer choice.

Answer 9

What answers are in your choice?

Answer 10

A. 184pi Units2
B. 304pi Units2
C. 248pi Units2
D. 496pi Units2

Answer 11

If we find the missing foot we can use the formula
SA = 1/3 * pi * R^2 * H
H being the vertical leg of the triangle

Answer 12

So using the pathogen theorem we get 14^2-8^2 = b^2
b = sqrt (196-64)
b = 11.4891

Answer 13

Plugging that back into the 2nd formula we get
1/3 * pi * 8^2 * 11.4891
which comes out to around 245 pi

It is probably C, Sorry I didn't get the exact answer.

Answer 14

Sorry I don't know exactly.