SOLUTION: A closed cylinder has a curved surface area of 72π cm squared and a height of 4cm. Find the total surface area of the cylinder in terms of π

Algebra ->  Surface-area -> SOLUTION: A closed cylinder has a curved surface area of 72π cm squared and a height of 4cm. Find the total surface area of the cylinder in terms of π      Log On


   

Question 1121717: A closed cylinder has a curved surface area of 72π cm squared and a height of 4cm. Find the total surface area of the cylinder in terms of π
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
--------------------------------------------------------------------------
A closed cylinder has a curved surface area of 72π cm squared and a height of 4cm. Find the total surface area of the cylinder in terms of π
-------------------------------------------------------------------------

Top and bottom, as indicated, "closed".

2pi%2Ar%2A4=72-----------solve for radius, r.


Total Surface Area, 2%2Api%2Ar%5E2%2B4%2A2%2Api%2Ar=2pi%2Ar%5E2%2B8pi%2Ar