Posted by Albert on Monday, March 8, 2010 at 8:55pm.
old rectangle:
length : y
width : x
so 2x + 2y = 76 or
x+y = 38
new rectangle:
2x by y/2
2(2x) + 2(y/2) = 62
4x + y = 62
subtract them:
3x = 24
x = 8 ,then y = 30
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