SOLUTION: If the area of base of a cylinder is 45 sq.cm. Height is 9 cm. find the volume and total surface area of a cylinder ?

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Question 840158: If the area of base of a cylinder is 45 sq.cm. Height is 9 cm. find the volume and total surface area of a cylinder ?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,



If the area of base of a cylinder is 45 sq.cm. pi%2Ar%5E2+=+45cm%5E2 r+=+sqrt%2845cm%5E2%2Fpi%29

 Height is 9 cm

V = pi%2Ar%5E2h+=+45cm%5E2%2A9cm+=+405cm%5E2+

S%5BT%5D+=+2pi%2Arh+%2B+2pi%2Ar%5E2

S%5BT%5D+=+2pi%2Asqrt%2845cm%5E2%2Fpi%29%289cm%29+%2B+90cm%5E2

0r 

S%5BT%5D+=+2sqrt%2845cm%5E2%2A3.14%29%289cm%29+%2B+90cm%5E2