Answer:
X = 95 degrees
Y = 147 degrees
Z = 128 degrees
Explanation:
Angle z can be found as :
= 128 degrees. This is because the sum of the internal angle and the external angle on the same vertex is 180°
The opposite of angle X can be found as
= 85 degrees.
Now angle X lies on the same line. We can say X is exterior angles to the opposite interior angle of bigger triangle.
Angle X =
= 95 degrees
An exterior angle of a triangle is equal to the sum of the opposite interior angles.
Angle Y =
= 147 degrees.