Answer:
x = 90 and y = 43
Step-by-step explanation:
Since AB = AC then the triangle is isosceles and AD is a perpendicular bisector, thus
x = 90
and the base angles are congruent, thus ∠B = ∠C = 47
The sum of the angles in a triangle = 180°
Subtract the sum of the known angles from 180 for value of y
y = 180 - (90 + 47) = 180 - 137 = 43
