If the sides of square are halved, then , . find the ratio of areas of new square and original square. .
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If the length of a side of square is x then, Area=x ^2
If the length of a side of square is 2x then, New Area=2x×2x=4x ^2
Ratio = Original area / New area
=x^2/4x^2
= 1/4
Therefore ratio is 1:4
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