Find the area of a square if the length of its sides doubled. Also find the ratio of new area to its previous area.
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Area=2a x 2a
=4a^2
Area1:Area2
=a^2:4a^2
(by cancelling a^2)
=1:4
=4a^2
Area1:Area2
=a^2:4a^2
(by cancelling a^2)
=1:4
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