Asked by Hannah
A cylindrical carton of oatmeal with radius of 3.5 in. is 9 in tall. If all surfaces except the top are made of cardboard , how much cardboard is used to make the oatmael carton. Round your answer to the nearest square inch
Answers
Answered by
Ms. Sue
Bottom:
A = pi * r^2
A = 3.14 * 3.5^2
A = 38.465 square inches
Sides:
A = 2 * pi * r * h
Add the two areas together and round.
A = pi * r^2
A = 3.14 * 3.5^2
A = 38.465 square inches
Sides:
A = 2 * pi * r * h
Add the two areas together and round.
Answered by
Hannah
I don't understand how to do this
Answered by
Ms. Sue
Multiply:
2 * 3.14 * 3.5 * 9 = ?
2 * 3.14 * 3.5 * 9 = ?
Answered by
Hannah
197.8
Answered by
Ms. Sue
Right.
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