Question

in a angle if ab=ac and angle a=70 degree find angle b and c

Answer 1

if ab = ac
then angle b = angle c
also
in a triangle
angle a + angle b + angle c = 180°
70° + angle b + angle b = 180°
2 angle b = 180° - 70°
angle b = 110°/2
angle b = 55°
therefore,
angle c = 55°