Question

In triangle ABC, BC-AB and angle B is 80 degree then find angle A

Answer 1

Answer:

IN ABC

BC=AB ..(

(ABC IS ISOSCELES )

<B=<C= 80• (ANGLES OPPOSITE TO CONGRUENT SIDES)

<A+ANGLE B + <C= 180

80+80+C=180•..(MEASURE OF ALL ANGLES OF TRIQNGLE IS 180)

160+A=180

A=180-160

A=20•

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Answer 2

Answer:

The answer is provided in the image above.

Step-by-step explanation:

step wise explanation is also given .

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