Question

3 In a ABC, If AB = AC and

angle A = 70. Find angle B and angle c.
​

Answer 1

55

Step-by-step explanation:

ab=ac then angleB=anglec =x

2x+70=180

x=55

Answer 2

Answer:

as AB = AC

therefore, their opposite angles will be equal.

so,

let Angle B=angle C=x

we know that ,

sum of all angles of triangle = 180°

angle A +angle B+angle C = 180°

70°+x+x=180°

2x= 180°-70°

2x= 110°

x= 55°

so,

angle B= 55°

angle C = 55°