Question

In a triangle ABC if AB=AC, and angle B = 50°. Then find the value of angle A.

Answer 1

FORE DIAGRAM PLZZ REFER IMAGE

In triangle ABC,

AB=AC

angle B=50° then,angle C also 50°{IN A ISOSCLES TRIANGLE EQUAL SIDES OPPOSITE ANGLES ARE EQUAL}

then,
angle A+angle B+ angle C= 180°

angle A+50°+50°=180°

angle A=180°-100°=80°

THERE​ FORE,
ANGLE A=80°

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