Question: PARCEL POST REGULATIONS Postal regulations specify that a parcel sent by priority mail may have a combined length and girth of no more than 108 in. Find the dimensions of the cylindrical package of greatest volume that may be sent via priority mail. What is the volume of such a package? Compare with Exercise. Hint: The length plus the girth is 2πr + l.
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Exercise: PARCEL POST REGULATIONS Postal regulations specify that a parcel sent by priority mail may have a combined length and girth of no more than 108 in. Find the dimensions of a rectangular package that has a square cross section and the largest volume that may be sent via priority mail. What is the volume of such a package? Hint: The length plus the girth is 4x + h (see the accompanying figure).
![138_15.png](https://secure.tutorsglobe.com/CMSImages/138_15.png)