SOLUTION: A cylindrical container has a base radius of 4cm and it height 12cm.Calculate its total surface area open at one end

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Question 1160453: A cylindrical container has a base radius of 4cm and it height 12cm.Calculate its total surface area open at one end
Found 3 solutions by MathLover1, Alan3354, MathTherapy:
Answer by MathLover1(20850) About Me  (Show Source):
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given:
r=4cm
h=12cm
total surface area open at one end:
If you are asked to find the surface area of a cylinder open at one end , then you want to find the areas of the one ends (which is r%5E2%2Api) and the curved surface (which is 2r%2Api%2Ah) .

A=r%5E2%2Api%2B2r%2Api%2Ah
A=%284cm%29%5E2%2Api%2B2%2A4cm%2Api%2A12cm
A=16%2Api%2Acm%5E2%2B96%2Api%2Acm%5E2
A=112%2Api%2Acm%5E2->exact
A=351.86%2Acm%5E2-> approximately


Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
A cylindrical container has a base radius of 4cm and it height 12cm.Calculate its total surface area open at one end
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No thickness of the walls is given.
The total SA would include the area of the outside and the inside of the container.
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If it's a solid object, it's not a container.
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People who don't know what they're talking about should not attempt to write math problems.
Or anything else.
They can do very well in politics.

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!
A cylindrical container has a base radius of 4cm and it height 12cm.Calculate its total surface area open at one end