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Mathematics 19 Online
OpenStudy (anonymous):

.what is the surface area of the cylinder radius is 4yds and the height is 12 please give answer in terms of pi

OpenStudy (mrnood):

|dw:1406738013035:dw| The area of the cylinder is the area of its curved surface - unwrapped you can see it is a rectangle PLUS the area of its ends. So oyu have 2 circles of radius r Plus 1 rectangle height = 12 and width = circumference of the same circle

OpenStudy (anonymous):

ok so what do i do next

OpenStudy (mrnood):

What is the formula for the area of a circle? What is the formula for the circumference of a circle? Write them here

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