In triangle ABC, ∠BAC = 90° and AD ⊥ BC. Then
A. BD . CD = BC2
B. AB . AC = BC2
C. BD . CD = AD2
D. AB . AC = AD2
Answer:C
In triangle ABC, ∠BAC = 90° and AD ⊥ BC. Then
A. BD . CD = BC2 B. AB . AC = BC2 C. BD . CD = AD2 D. AB . AC = AD2
Explanation: In ΔADB and ΔADC,