Higher June 2024 Paper 5 Q5

OCRHigherCurrent spec3 marksConstructions

5 Triangle ABC is drawn below.

Using a ruler and compasses only, construct and shade the region which is closer to AB than AC. [3]

Answer	Marks	Part marks and guidance
acceptable bisector of angle A with two pairs of supporting arcs	M2	M1 for acceptable bisector of angle A with no or incorrect arcs	Tolerance ± 2° Use overlay Accept dashed or solid line for bisector If additional incorrect bisectors are drawn then this is choice and M0 unless the shading indicates they have chosen the correct bisector
Region to the left of their bisector shaded	B1	Dep on ruled line from angle A reaching BC	Accept any clear indication for shading