Question

What’s the value of x y and z

Answer 1

z = 145° , y = 35° , x = 145°

Explanation:

z = 180° - 35° = 145° (angles in a straight line add up to 180° i.e z + 35° 180°)

y + z = 180° (angles in a straight line add up to 180°)

∴ y = 180° - 145° = 35°

Alternatively: y = 35° (vertically opposite angles are equal)

x = z = 145° since vertically opposite angles are equal.