Answer:
x = 55°, y = 70° and z = 125°
Step-by-step explanation:
Step 1 - Calculate ∠x:
As all angles on a line add up to 180°
125 + x = 180
x = 180 - 125
x = 55
Step 2 - Calculate ∠y:
As the triangle is an isosceles triangle, as evident by the two sides of equal length:
180 = y + 55 + 55
180 = y + 110
y = 180 - 110
y = 70
Step 3 - Calculate z:
180 - 55 = z
z = 125
Meaning that x = 55°, y = 70° and z = 125°
Hope this helps!
