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प्रश्न
ΔABC is enlarged, with a scale factor 5. Find: BC, f B'C' = 16cm
उत्तर
`"Image length"/"Actual length"` = Scale factor
`"B'C'"/"BC"` = 5
⇒ BC = `(16)/(5)`
⇒ BC = 3.2cm.
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