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प्रश्न
ΔABC is enlarged, with a scale factor 5. Find: A'B', if AB = 4cm
उत्तर
`"Image length"/"Actual length"` = Scale factor
`"A'B'"/"AB"` = 5
⇒ A'B' = 4 x 5
⇒ A'B' = 20cm.
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