Question

In AABC, if AB = AC and B = 50° , then <A is equal to *​

Answer 1

Answer:

angle A = 80°

Step-by-step explanation:

If the opposite sides of a triangle are equal, then the angles opposite to the sides are also equal, then,

AB = AC, then,

angle B = angle C

50 = x

angle C = 50°

The sum of angles in a triangle is 180°, therefore,

angle A + angle B + angle C = 180°

y + 50° + 50° = 180°

y + 100° = 180°

y = 180° - 100°

y = 80°

angle A = 80°