Question

In ∆ABC , ∠A =70° and AB = AC then ∠B =

a) 55°

b) 30°

c) 60°

d) 35°​

Answer 1

Answer:

a)=55° this is right answer

Answer 2

Answer: OPTION A IS CORRECT

                                                                     

Step-by-step explanation: AB = AC

                                                ∠B = ∠C = ( ANGLES OPPOSITE TO EQUAL SIDES ARE EQUAL ) ----------> (1)

∠A + ∠C + ∠B = 180 ( ANGLE SUM PROPERTY)

70° +∠B + ∠B = 180

70 + 2∠B = 180

2∠B = 110

∠B = 55

MARK IT AS BRAINLIST