Uses formula to find the amount of wrapping paper you need to wrap a gift in the cylindrical box shown. You need to cover the to
p, bottom, and all the way around the box. Use 3.14 for pi.
1 answer:
Answer:
960.84 in^2
Step-by-step explanation:
The formula for the surface area of a cylinder is ...
SA = 2πr^2 +2πrh = 2πr(r +h)
For the given box, the surface area is ...
SA = 2π(9 in)(9 in + 8 in) = 306π in^2
SA = 960.84 in^2
960.84 square inches of wrapping paper are needed.
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