Question

plz, answer this question. only relevant answers!!!

Answer 1

Answer:

as AB =BC

(by property equal sides form equal angles)

angle A =angle C

so,

angle A and angle C = 70

By angle sum property

70+70+angle ABC=180

angle ABC=180-140

ANGLE ABC= 40

Step-by-step explanation:

OPTION (D)

Answer 2

Answer:

In ∆ABC ,

∆A = 70°

so, ∆B = ∆C = X°

Then, A+B+C = 180°

70°+X°X° = 180°

2X°= 180° -70°=110°

X°= 110/2= 55°

Hence,∆ABC = 55°