Maths Maestri

What this quiz covers

Grade 9 Geometry Quiz 1 draws its questions at random from 30 questions across these topics:

Worked examples

A few of the question types, with full solutions, so you know what to expect.

Angles at a point. Vertically opposite angles are always...

  1. equal
  2. supplementary
  3. complementary
  4. right angles

Answer: equal

Angles on a line. Angles on a straight line add up to...

  1. 180°
  2. 360°
  3. 90°
  4. 270°

Answer: 180°

Angles at a point. Angles around a point add up to...

  1. 360°
  2. 180°
  3. 90°
  4. 720°

Answer: 360°

Angles at a point. Two straight lines cross; one angle is 130°. Its vertically opposite angle is...

  1. 130°
  2. 50°
  3. 230°
  4. 65°

Answer: 130°

Vertically opposite angles are equal.

Angles on a line. Two straight lines cross; one angle is 130°. The angle next to it (on the line) is...

  1. 50°
  2. 130°
  3. 230°
  4. 60°

Answer: 50°

Angles on a straight line: 180° − 130°