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Question
In ΔABC~ΔDEF such that 2AB = DE and BC = 6cm, find EF.
Solution
When two triangles are similar, then the ratios of the lengths of their corresponding sides are equal.
Here, ΔABC ~ΔDEF
∴ `(AB)/(DE)=(BC)/(EF)`
⇒`( AB)/(2AB)=(6)/(EF)`
⇒ EF = 12 cm
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