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Edexcel IGCSE Math A 4.1.B angles on lines and parallels

Practise line-angle questions by combining straight-line totals, parallel-line facts and vertically opposite angles to find the unknown value.

Syllabus
First assessment 2018
Course
Math A 4MA1
Level
Higher

Exam points

  • Use angles on a straight line or around a point to form the missing angle.
  • Apply parallel-line angle facts such as corresponding or alternate angles.
  • Give a reason for each angle step when the question asks for justification.

4.1.B Angle properties of intersecting lines, parallel lines question 1

[Maximum number: 3]
Figure for Question 4.1.B Angle properties of intersecting lines, parallel lines question 1 — Edexcel IGCSE Math A Higher

Diagram NOT accurately drawn
ACE and BCD are straight lines.
AB is parallel to DE
Work out the value of x

x=
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