The perimeter of square is 28 cm. find its area and lenght of diagnol
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Step-by-step explanation: the perimeter of the square is 4a so first find a
p=4a
28=4a
a=7 cm
area=a²
=(7)²=49 cm²
length of diagonal=√2a=√2×7=√14 cm
this is ur answer
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