SOLUTION: HOW CAN I FIND THE SURFACE AREA OF A CYLINDER I KNOW THE FORMULA BUT Im REALLY CONFUSED ON HOW TO DO THIS ONE PROBLEM THE RADIUS IS 5cm and the hight is 20cm I need help can you he

Algebra ->  Surface-area -> SOLUTION: HOW CAN I FIND THE SURFACE AREA OF A CYLINDER I KNOW THE FORMULA BUT Im REALLY CONFUSED ON HOW TO DO THIS ONE PROBLEM THE RADIUS IS 5cm and the hight is 20cm I need help can you he      Log On


   

Question 961910: HOW CAN I FIND THE SURFACE AREA OF A CYLINDER I KNOW THE FORMULA BUT Im REALLY CONFUSED ON HOW TO DO THIS ONE PROBLEM THE RADIUS IS 5cm and the hight is 20cm I need help can you help be please

Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

Surface Area of a Cylinder:
SA=+2%2Api%2Ar%5E2+%2B+2%2Api%2Ar%2Ah where r is a radius and h is a height
you are given r=5cm and h=20cm, and we know that pi=3.14
plug it in formula
SA=++2%2A3.14%2A%285cm%29%5E2+%2B+2%2A3.14%2A5cm%2A20cm
SA=++6.28%2A25cm%5E2+%2B+6.28%2A100cm%5E2
SA=++157cm%5E2+%2B+628cm%5E2
SA=++785cm%5E2