Answers

2015-03-14T21:51:14+05:30
Perimeter=4a
4a=40
a=40/4=10
side=10

area=a²
=10²=100 cm²
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2015-03-14T22:01:23+05:30
Perimeter of square=4 × side 40=4 × side Side=40÷4 Side=10 Area of square= side × side =10 ×10 =100
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