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OpenStudy (anonymous):
Two opposite sides of a square are increased by 5 cm to form a rectangle. If the rectangle has a perimeter of 70 cm, what was the length of a side of the original square? A. 15 cm B. 10 cm C. 20 cm D. 25 cm
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OpenStudy (anonymous):
15+15+20+20=70 So, the original length was 15.
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