Postal regulations specify that a parcel sent by priority mail may have a combined length and girth of no more than 102 in.

Postal regulations specify that a parcel sent by priority mail may have a combined length and girth of no more than 102 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. Hint: The length plus the girth is 4x + h (see the figure below).