• Angles Quiz: Multiple Choice

1. An acute angle is always:

1.    A) Larger than 90°
2.    B) Smaller than 90°
3.    C) Exactly 90°
4.    D) Larger than 180°

2. A right angle measures:

•    A) 45°
•    B) 90°
•    C) 180°
•    D) 60°

3. When two angles add up to 90°, they are called:

•    A) Supplementary angles
•    B) Complementary angles
•    C) Vertical angles
•    D) Parallel angles

4. An obtuse angle is:

•    A) Less than 90°
•    B) Exactly 90°
•    C) Between 90° and 180°
•    D) More than 180°

5. In a triangle, the sum of all angles is always:

•    A) 90°
•    B) 180°
•    C) 360°
•    D) 45°

6. Which of these is NOT an example of a right angle?

•    A) Corner of a book
•    B) Intersection of a plus sign (+)
•    C) Top of a slide
•    D) Corner of a computer screen

7. Two angles that form a straight line measure:

•    A) 45°
•    B) 90°
•    C) 180°
•    D) 360°

8. An angle smaller than 45° is:

•    A) Acute
•    B) Obtuse
•    C) Right
•    D) Reflex

9. When you fold a piece of paper exactly in half, the crease creates:

•    A) An acute angle
•    B) An obtuse angle
•    C) A right angle
•    D) A reflex angle

10. The corner of a typical room forms:

•     A) An acute angle
•     B) An obtuse angle
•     C) A right angle
•     D) A reflex angle