Answers

2015-11-16T19:24:37+05:30
4a=40
a=10

AREA
a×a=10×10=100
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2015-11-16T19:29:49+05:30
given,
perimeter = 40 cm
therefore the length,
perimeter = 4*a
P =  4 *a
40 = 4 *a
10 = a
therefore length of the square = 10 cm
now area of the square,
side * side = area
10 * 10 = 100 cm
²
therefore the area of the square = 100 cm²
   i hope that it will help u .......................^_^

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