Ask your own question, for FREE!
Mathematics 20 Online
OpenStudy (anonymous):

find the surface area of the cone in terms of PI

OpenStudy (anonymous):

#8

OpenStudy (anonymous):

452.39

OpenStudy (anonymous):

452.39 square cm

OpenStudy (anonymous):

\[360 \pi \]

OpenStudy (anonymous):

mad schientist101- thats not an answer option

OpenStudy (anonymous):

miriwire- huh?

OpenStudy (anonymous):

360 times pi

OpenStudy (anonymous):

here are the options a. 144 pi cm^2 b. 150 pi cm^2 c. 153 pi cm^2

OpenStudy (anonymous):

oh, madscientist answer is there

OpenStudy (cwrw238):

in no. 8 is 12 the radius of base or diameter?

OpenStudy (anonymous):

oh its A

OpenStudy (anonymous):

yep

OpenStudy (cwrw238):

area of come = pi r s + pi r^2 where s = length of slope

OpenStudy (anonymous):

i thought s=18

OpenStudy (cwrw238):

yes s = 18 but whats r?

OpenStudy (anonymous):

r=12

OpenStudy (cwrw238):

ok - so answer to no. 8 is 144pi + 216 pi = 360 pi

OpenStudy (anonymous):

that's what i had got but it wasn't an answer choice listed

OpenStudy (cwrw238):

strange

OpenStudy (anonymous):

maybe so, she never replied back so maybe she got the right answer

OpenStudy (cwrw238):

oh - hold on - its 144pi if 12 is the diameter of the base that is radius = 6: 36pi + 108pi = 144pi

OpenStudy (anonymous):

oh...haha it looks like 12 was the radius in the picture

OpenStudy (cwrw238):

no looks like 12 is diameter - thats why i asked about it

OpenStudy (anonymous):

I see it now...need to get my eyes checked lol

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!