Question

What is the surface area of a cone with a radius of 12 centimeters and a slant height of 8 centimeters? Use 3.14 for pi.

Answer 1

formula is
\[S=\pi rs + \pi r^2\] yes?

Answer 2

502.4 cm^2
753.6 cm^2
803.84 cm^2
1,205.76cm^2

Answer 3

in your case r = 8, s = 12

Answer 4

Annnd which answer is that?

Answer 5

dunno let me get a calculator and see what i get. do you have one?

Answer 6

K

Answer 7

oops i read it wrong
r = 12 and
s = 8
so you want
\[\pi \times 8\times 12+\pi\times 12^2\]

Answer 8

oh sorry...dunno where my mind is//very sleepy..sorry

Answer 9

well do u have a ps3?

Answer 10

what is with these numbers by the names?

Answer 11

Idk, I copied and pasted

Answer 12

ok i got 753.6 using 3.14 for pi