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Mathematics 17 Online
OpenStudy (anonymous):

A solid cylinder of radius r and height h is vertically cut into two equal parts, then the total surface are is increased by

OpenStudy (anonymous):

a)rh b)r^2h c)2rh d)4rh

geerky42 (geerky42):

|dw:1355593239500:dw|

OpenStudy (anonymous):

Oh i see wat u did There I'll try plzz w8

geerky42 (geerky42):

So the total surface are is increased by 2r·h + 2r·h, which can be simplified into...

OpenStudy (anonymous):

4rh

geerky42 (geerky42):

There you go.

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