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Question
In the given figure, DE || BC. If DE = 5 cm, BC = 8 cm and AD = 3.5 cm then AB = ?
Options
5.6 cm
4.8 cm
5.2 cm
6.4 cm
MCQ
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Solution
5.6 cm
Explanation:
DE || BC so ΔADE ∼ ΔABC.
Hence, `(AD)/(AB) = (DE)/(BC)`.
So, `AB = AD xx ((BC)/(DE))`
= `3.5 × (8/5)`
= 3.5 × 1.6
= 5.6 cm
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