Math 6 · Unit 13: Angles · Cambridge Primary Maths Stage 6

Questions

1. 1. An angle of 250° is …

   • obtuse
   • reflex
   • acute
   • straight
   Check

2. 2. Angles around a point add up to …

   • 90°
   • 270°
   • 360°
   • 180°
   Check

3. 3. Three angles around a point are 100°, 120° and ?

   • 160°
   • 40°
   • 140°
   • 220°
   Check

4. 4. The inside angle is 110°. What is the reflex angle on the outside?

   • 180°
   • 250°
   • 70°
   • 290°
   Check

5. 5. On a protractor, where do you place the centre point?

   • on the vertex of the angle
   • at the end of an arm
   • anywhere on the line
   • at 90°
   Check

6. 6. An angle of 179° is …

   • obtuse
   • straight
   • reflex
   • acute
   Check

7. 7. Angles on a straight line: 48° and ?

   • 132°
   • 42°
   • 312°
   • 142°
   Check

8. 8. Which angle is acute?

   • 181°
   • 90°
   • 91°
   • 89°
   Check

9. 9. Four equal angles meet at a point. Each is …

   • 60°
   • 90°
   • 180°
   • 45°
   Check

10. 10. Vertically opposite angles are …

    • add to 360°
    • add to 90°
    • equal
    • always 90°
    Check

11. 11. Two straight lines cross. One angle is 70°. What is angle a?

    • 20°
    • 110°
    • 290°
    • 70°
    Check

12. 12. Two straight lines cross. One angle is 70°. What is angle b?

    • 110°
    • 290°
    • 20°
    • 70°
    Check

13. 13. The minute hand moves from 12 to 4. What angle has it turned?

    • 90°
    • 120°
    • 40°
    • 4°
    Check

14. 14. A reflex angle measures 300°. What acute angle completes the full turn?

    • 30°
    • 300°
    • 60°
    • 120°
    Check

15. 15. Which is the largest?

    • a right angle
    • a reflex angle
    • an obtuse angle
    • an acute angle
    Check