Question 851208: A rectngular wire has an area of 12 cm sqr , If the length of rec. Is increased by 3 and breath is decreased by 2 then find its new value????
Answer by JulietG(1812)   (Show Source):
You can put this solution on YOUR website! Let's assume the length and width of the rectangle is 4*3.
Increase 4 to 7, and decrease 3 to 1, and you have 7*1 = 7 cm sqr.
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What other possible (whole) measurements could the rectangle be?
12,1
6,2
Neither of those work because the new measurement would be zero or less than zero, so the 4 and 3 scenario are the original measurements.
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