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ZIMSEC O-Level Mathematics

8.1Points, lines and angles

Points, lines and angles in ZIMSEC O-Level Mathematics: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic64 practice questions3 lessons

Learning objectives

What the syllabus expects you to be able to do.

  1. 8.1.1Use the language of points, lines and angles, including types of angle and complementary and supplementary angles.
  2. 8.1.2Calculate angles at a point, on a straight line, vertically opposite and formed by parallel lines and a transversal, giving reasons.
  3. 8.1.3Solve problems involving angles of elevation and depression.

Lessons

  • Angle properties

    25 min

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  • Angles of elevation and depression

    20 min

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  • Geometrical terms and vocabulary

    20 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Points, lines and angles: sample question

1 mark

Three angles lie side by side on a straight line. Two of them are 47∘47^\circ and 68∘68^\circ. Find the third angle.

Answer in °.

Turn Points, lines and angles into a strength.

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