In figure, if ∠ BAC = 90 ° and AD ⊥ BC. Then,

Question

Philoid · Accepted Answer

In ∆ADB and ∆ADC,

It is given that,

∠D = ∠D = 90° (∵ AD ⊥ BC)

∠DBA = ∠DAC [each angle equals to 90°-

Now by AAA similarity criteria,

∆ADB ∼ ∆ADC

→ BD/AD = AD/CD

→ BD.CD = AD �

In figure, if ∠BAC = 90° and AD ⊥ BC. Then,