Angles (Including Parallel Lines): Eduqas GCSE Foundation November 2023 Paper 1 Q20

Foundation November 2023 Paper 1 Q20

EduqasFoundationCurrent spec2 marksAngles (Including Parallel Lines)

20. The diagram below shows three straight lines, \(AB\), \(CD\) and \(GH\).

Diagram not drawn to scale

Show that \(AB\) and \(CD\) are parallel.
You must give reasons to justify your answer. [2]

Mark scheme

Scheme	Marks	Comments
An explanation using corresponding, alternate or allied/co-interior angles where the relevant angles have been identified e.g. \(A\hat{E}F = 80^\circ\) AND ‘allied/co-interior angles sum to \(180^\circ\)’ \(A\hat{E}G = 100^\circ\) AND ‘corresponding angles are equal’ \(B\hat{E}F = 100^\circ\) AND ‘alternate angles are equal’	E2	Angles may be marked on the diagram. E1 for correctly identifying an angle of 80 or 100, accompanied with a basic angle rule e.g. ‘vertically opposite angles are equal’ ‘angles on a straight line sum to 180’. No marks for simply identified angles of 80 or 100 degrees on the diagram.
	(2)