Question

5.In triangle ABC, side AB = side AC ,Find measure angle B if, measure angle is A = 4​

Answer 1

Answer:

ANSWER

Since AC>AB

So, ∠B>∠C

As angle opposite to the greater side is greater.

Now,

In  △ADC and   △ADB

∠ADC+∠C+∠DAC=180∘=∠ADB+∠B+∠DAB

Since ∠DAC=∠ADB

∠ADC+∠C=∠B+∠ADB

But, ∠B>∠C

So, to hold equality,

∠ADC>∠ADB