Question

In triangle ABCD angle BC =AB and angle B =80 , then angle A is ___.​

Answer 1

Answer:

50 degree

Step-by-step explanation:

As BC = AB

SO opposite angles of equal side are equal so

let us take angle C and A as x

Sum of angles in triangle is 180

x+x+100=180

x=50

So Angle A is 50 degree

Answer 2

triangle is isosceles so BC will be = to AB for step by step explanation go through the photo attached

Hope it helps

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