Q9 of 53 Page 158

In Δ ABC, m∠A = 90, is an altitude. Therefore BD.DC = ……


As we know that,


If an altitude is drawn to hypotenuse of a right angled triangle, then the length of altitude is the geometric mean of lengths of segments of hypotenuse formed by the altitude.


⇒ AD2 = BD.DC


∴ Option (d) is correct.

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