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In ∆ABC, ˂B=90˚ and BD ꓕ AC. If AC = 9cm and AD = 3 cm then BD is equal to(a) 2√2 cm(b) 3√2 cm(c) 2√3 cm(d) 3√3 cm |
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Answer» Correct answer is: (b) 3√2 cm CD/BD = BD/AD BD2 = CDXAD = 6X3 BD=3√2 cm |
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