Question

the perimeter of a square is 40 cm find its area

Answer 1

Perimeter of square = 4× side
40= 4×side
10 = side
Area of square = side × side
10×10
100cm^2
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Answer 2

let one side be a .
so,perimeter of square = 4 a
or,40=4 a
or,a=40/4
or,a=10
therefore, side of square =10cm

area of square =a×a
=10×10
=100cm^2
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