Question

please give the answer​

Answer 1

angleB = angleC

=>70°

Now Accdn to Angle sum property of triangle

angle A+ angleB +angle C=180°

angle A= 180°-140°

angle A=40°

Answer 2

Angle A = 40°

If AB = AC

Then their corresponding angles will also be equal.

Angle ABC = 70° = Angle ACB

Now sum of all angles of Triangles are 180°.

So, Angle A = 180° - 70° - 70°

Angle A = 40°

Thankyou!!!