SOLUTION: the height of a over sized container is 3m. Its diameter is 2m.What is its area?(A)16m2(B)12m2 (C)18m2 (D)25m2

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Question 252465: the height of a over sized container is 3m. Its diameter is 2m.What is its area?(A)16m2(B)12m2 (C)18m2 (D)25m2
Found 2 solutions by richwmiller, drk:
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
Assuming this a cylindrical container, we can calculate the area.
radius =1 meter
2*pi*r*h=surface area without ends =2*3.14*1*3=18.84 m^2
2*pi*r*h+2*(pi*r*r)
2*3.14*1*3+2*3.14*1*1
(2*3.14*1)*(3+1)=25.12m^2



Answer by drk(1908) About Me  (Show Source):
You can put this solution on YOUR website!
I think you want the total surface area here. Now, it appears that the object will be a cylinder, based on the problem description. The formula for that is:
TSA = 2%2AB+%2B+C%2Ah.
which is expressed as
TSA = 2%2Api%2Ar%5E2+%2B+2%2Api%2Ar%2Ah.
We know diameter = 2m, so radius = 1m and h = 3m. Putting these into our formula, we get
SA = 2%2Api%2A1%5E2+%2B+2%2Api%2A1%2A3
SA = 8pi meters^2.
Unfortunately, this doesn't match with any answers you have. If [C] were 8m^2 instead of 18m^2, we would have an answer.