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60 - 61 Maxima and minima problems of a folded page

Figure 41Problem 60
One corner of a leaf of width a is folded over so as just to reach the opposite side of the page. Find the width of the part folded over when the length of the crease is a minimum. See Figure 41.
 

35 - 37 Solved problems in maxima and minima

Problem 35
A page is to contain 24 sq. in. of print. The margins at top and bottom are 1.5 in., at the sides 1 in. Find the most economical dimensions of the page.

 
 
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