Question

In triangle ABC , BC = AB and angle B =70° is equal to​

Answer 1

Step-by-step explanation:

what is your question

please check your question

Answer 2

Step-by-step explanation:

∠A=40°

Step-by-step explanation:

Given In ∆ABC ,

AB=AC and <B=70°

/* In ∆ABC , If AB=AC then <C=<B */

Given \: \angle C=\angle B=70\degreeGiven∠C=∠B=70°

\angle A+\angle B+\angle C=180\degree∠A+∠B+∠C=180°

\implies \angle A+70 \degree+70 \degree=180 \degree⟹∠A+70°+70°=180°

\implies \angle A+140\degree=180 \degree⟹∠A+140°=180°

\implies\angle A=180\degree-140 \degree⟹∠A=180°−140°

\implies \angle A=40 \degree⟹∠A=40°

Therefore,

\angle A=40 \degree∠A=40°

•••♪