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Edexcel IGCSE Math A 4.7 geometrical reasoning

Use this geometrical-reasoning page to calculate angles and support each stage with standard facts about lines, shapes and circles.

Syllabus
First assessment 2018
Course
Math A 4MA1
Level
Higher

Exam points

  • Calculate angles in line, triangle, polygon or circle diagrams before giving reasons.
  • Use named geometry facts such as isosceles angles, straight lines or circle theorems.
  • Explain each stage when the question asks for a reason for the angle value.

Covered syllabus points

4.7.A Give informal reasons, where required, when arriving at4.7.HA Geometrical reasoning for angles

4.7 Geometrical reasoning question 1

[Maximum number: 2]
Figure for Question 4.7 Geometrical reasoning question 1 — Edexcel IGCSE Math A Higher

L, M, N and P are points on a circle, centre O
Angle MNP=58∘M N P=58^{\circ}

Give a reason for your answer.

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