In ΔABC, AD ⊥ BC and AD2 = BD × DC. The measure of ∠BAC is :
A. 75°
B. 90°
C. 45°
D. 60°
Answer: Option B
Solution (By Examveda Team)
AD2 = BD.DC
ΔADC ∼ ΔCAB (Property of a right angle Δ)
∠BAC = ∠ADC = 90°
This Question Belongs to Arithmetic Ability >> Triangles
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