Primary 4 Mathematics · Chapter 7 · Practice sheet

Lesson 7.3: Measuring Angles

Name:Date:Marks: / 15

Section A · Multiple choice 4 marks

1. What is the size of the angle?1 mark

(A) 140°(B) 50°(C) 130°(D) 40°

2. What is the size of the angle?1 mark

(A) 65°(B) 115°(C) 55°(D) 125°

3. What is the size of the angle?1 mark

(A) 45°(B) 135°(C) 125°(D) 145°

4. When Sam measured an acute angle, he read 30° on one scale and 150° on the other scale. What is the size of the angle?1 mark

(A) 150°(B) 60°(C) 30°(D) 120°

5. What is the size of the angle?1 mark

6. What is the size of the angle?1 mark

7. What is the size of the angle?1 mark

8. What is the size of the angle?1 mark

9. What is the size of the angle?1 mark

10. Measure ∠XYZ. Is it acute, right or obtuse?2 marks

11. Lina says ∠PQR is 110° because the arm is at 110 on the outer scale. Is she correct? What is the size of ∠PQR?2 marks

12. The two arms OB and OC are drawn from O. Find the size of ∠BOC.2 marks

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