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4MA1/2F Jan 2019, Question 15: Constructing Triangles

Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 2F (Foundation) · Calculator · 2 marks

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The question, in short

Using only a ruler and compasses, construct the perpendicular bisector of line AB, showing all construction lines.

Summarised in our own words. Use the official paper for the exact wording and the diagram.

Solution · 2 marks

  1. 1Place compass point on A and draw arcs above and below AB
  2. 2Place compass point on B and draw arcs above and below AB, intersecting the first arcs
  3. 3Draw a straight line through the points where the arcs intersect

Answerperpendicular bisector drawn within guidelines and with two pairs of relevant arcs present

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