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Mathematics 11 Online
OpenStudy (anonymous):

Does this cone and cylinder have the same surface area?

OpenStudy (anonymous):

OpenStudy (anonymous):

Please someone help?

OpenStudy (dan815):

surface area of a cone is

OpenStudy (mathstudent55):

Cylinder SA = 2(pi)rh + 2(pi)r^2

OpenStudy (dan815):

if u cut up and upfold the top part its jut a circle with radius 3r

OpenStudy (dan815):

and u know the area of the bottom circle

OpenStudy (dan815):

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