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The length of a diagonal of a square is 12 cm . Its area is
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x2+x2=144
Where x is a side of square
2x^2=144
x2=72
Thus x= root 72
x=6 root 2
Where x is a side of square
2x^2=144
x2=72
Thus x= root 72
x=6 root 2
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Answer:
Step-by-step explanation:
root 2*a=12 cm
hence a=12/root2
there fore area=12*12/2
=144/2
72 cm^2
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