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Mathematics 20 Online
OpenStudy (anonymous):

multiple choice? I have no idea how to get the answer?

OpenStudy (anonymous):

OpenStudy (anonymous):

@electrokid how would I set up the equation for this?

OpenStudy (anonymous):

@Hope_nicole could you help me please?(:

OpenStudy (anonymous):

what is the formula for the surface area for a cone?

OpenStudy (anonymous):

you mean for a pyramid?

OpenStudy (anonymous):

i meant cone. sorry. it is :

OpenStudy (anonymous):

pi r s + pr^2

OpenStudy (anonymous):

|dw:1366922009038:dw|

OpenStudy (anonymous):

you are give the surface area, and the radius find "s" = slant height

OpenStudy (anonymous):

\[A=\pi rs+\pi r^2\]

OpenStudy (anonymous):

how to work backwards? ;o

OpenStudy (anonymous):

start plugging in the numbers and @Hope_nicole will continue from there. :)

OpenStudy (anonymous):

@Hope_nicole thanks in advance.

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