Answers

2014-12-10T21:23:38+05:30
As per question
                 side² = 400cm²
           ⇒  side² = (20)²cm²
           ⇒ side = 20cm
Answer side=20cm
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2014-12-12T05:35:05+05:30
Given = Side² = 400cm²

According to the question .

Side² = 400cm²


==>>(Side)² = (20cm)²

==>>>>Side = 20cm.
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