Question

Find the value of x, y and z if line AB is parallel to line CD and EF is

parallel to GH.

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Answer 1

Answer:

∠z = 72° (Vertically opposite angles)

∠x = 180° - 72° = 108° (AB ║ CD, EF transversal, co-interior angle property)

∠y = ∠x = 108° (EF ║ GH, CD transversal, corresponding angle property)

Answer 2

Answer:

x+72°=180°(co interior angles)

x=180-72

x=108°

z=72°(vertically opposite angles)

y=x(EF parallel to GH ) [co int. angles]

y=108°