Question

pls solve 5
it is emergency ​

Answer 1

Given: AB = AC, BD = DC.

To prove: (i) ADB = ADC =90°

(ii) BAD = CAD.

Proof: In triangle ADB & ADC,

AB = AC (Given)

BD = DC (Given)

AD = AD (Common Side)

Hence Triangle ADB congruent to Triangle ADC.

i. ADB = ADC (CPCT)

ii. BAD = CAD (CPCT)

Hence proved...