4MA1/2F Nov 2021, Question 11: Constructing Triangles
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 2F (Foundation) · Calculator · 2 marks
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The question, in short
Using ruler and compasses, construct triangle ABC with sides AB = 9 cm, AC = 5 cm and BC = 8 cm, taking the given line AB as the base and showing all construction lines.
Summarised in our own words. Use the official paper for the exact wording and the diagram.
Solution · 2 marks
- 1Place compass point at A, set width to 5 cm, draw arc
- 2Place compass point at B, set width to 8 cm, draw arc
- 3Mark intersection point of arcs as C
- 4Join C to A and C to B to complete triangle ABC
AnswerTriangle ABC constructed with arcs from A (5 cm) and B (8 cm) intersecting correctly, showing all construction lines
Stuck on a step? Read the free lesson: Constructing Triangles
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