Question: Postal regulations specify that a parcel sent by priority mail may have a combined length and girth of no more than156in. Find the dimensions of

Postal regulations specify that a parcel sent by priority mail may have a combined length and girth of no more than156in. Find the dimensions of the cylindrical package of greatest volume that may be sent via priority mail. (Hint: The length plus the girth is2r+l.)

r= ____in

l= ____in

What is the volume (in cubic inches) of such a package?

_____in^3

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