3 years ago

you buy two rolls of wrapping paper. each roll has the same lateral surface area. what is the diameter of roll B?

1 answer:

8 0

The area of lateral surface is equal that the perimeter multiply by the length. So the lateral surface area of roll A is 3*π*30=90π. Roll B: d*π*24=24dπ. Put them together: 90π=24dπ. So d=3.75 in.

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KiRa [710]

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3 0

3 years ago

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storchak [24]

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Hatshy [7]

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2 years ago

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Airida [17]

Answer:

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2 years ago

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Nostrana [21]

Answer:

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5 0

3 years ago

Read 2 more answers