Success Homeschool

Primary 4 Mathematics · Angles and shapes

Name: ______________________

Date: ____________

1. What is an angle that is smaller than a right angle called?
- ☐ (a) Acute
- ☐ (b) Obtuse
- ☐ (c) Straight
- ☐ (d) Full turn
2. What type of angle is the corner of a sheet of paper?
- ☐ (a) Acute
- ☐ (b) Right
- ☐ (c) Obtuse
- ☐ (d) Straight
3. What angle do the hands of a clock make at 3 o'clock?
- ☐ (a) Acute angle
- ☐ (b) Right angle
- ☐ (c) Obtuse angle
- ☐ (d) Straight angle
4. What angle do the hands of a clock make at 6 o'clock?
- ☐ (a) Acute angle
- ☐ (b) Right angle
- ☐ (c) Obtuse angle
- ☐ (d) Straight angle
5. How many right angles does a rectangle have?
6. How many right angles make a straight angle?
7. An angle is bigger than a right angle but smaller than a straight angle. What type of angle is it?
8. You stand facing a door, then turn all the way around until you are facing the door again. What is this turn called?

Answer sheet

1. Acute — An acute angle is smaller than a right angle.
2. Right — The corner of a sheet of paper is a quarter turn, which is a right angle.
3. Right angle — At 3 o'clock the hands point to 12 and 3, which is a quarter turn: a right angle.
4. Straight angle — At 6 o'clock the hands point to 12 and 6 and form a straight line, which is a straight angle.
5. 4 — Every corner of a rectangle is a right angle, and a rectangle has 4 corners.
6. 2 — A straight angle is a half turn, and two quarter turns make a half turn.
7. Obtuse — Angles between a right angle and a straight angle are called obtuse.
8. A full turn — Turning all the way around back to the start is a full turn, which is the same as four right angles.