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Primary 4 Mathematics · Chapter 7 · Practice sheet

Lesson 7.2: Naming Angles

Name:Date:Marks:    / 15

Section A · Multiple choice 4 marks

1. Which is the correct name of the marked angle?1 mark

ACB
(A) ∠BAC(B) ∠CAB(C) ∠ABC(D) ∠BCA

2. In ∠PQR, which letter is the vertex?1 mark

(A) P(B) R(C) P and R(D) Q

3. Which angle is marked in the triangle?1 mark

XYZ
(A) ∠XZY(B) ∠ZXY(C) ∠XYZ(D) ∠YXZ

4. Which angle is the same as ∠DEF?1 mark

(A) ∠EDF(B) ∠FED(C) ∠DFE(D) ∠EFD

Section B · Write your answer 11 marks

5. Name the marked angle.1 mark

MKN

6. The vertex of ∠STU is a point. Which letter names it?1 mark

7. Write another name for ∠ABC.1 mark

8. ABCD is a rectangle. Name the marked angle.1 mark

ADCB

9. True or false: ∠ABC and ∠ACB are the same angle.1 mark

10. Name the three angles of triangle PQR that are marked.2 marks

PQR

11. Name all the angles in the figure. Which one is the obtuse angle?2 marks

ABCO

12. Mei says the marked angle is ∠ABC. Raj says it is ∠BAC. Who is correct? Give a reason.2 marks

ABC
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