Angles Quiz

Fill in the blank: The complementary angle of the supplementary angle of 140 degrees is _____.

1. 40°
2. 90°
3. 50°
4. 110°

Answer: (c) 50°

How many interior angles are less than 90° in the following diagram?

1. 4
2. 3
3. 5
4. 6

Answer: (a) 4

In the given figure, which angle is less than a right angle?

1. ∠AOQ
2. ∠COQ
3. ∠POB
4. ∠AOC

Answer: (b) ∠COQ

At what time between 3:00 and 4:00 will the hands of a clock form an angle of 90 degrees?

1. Half past 4
2. Quarter to 3
3. Half past 3
4. 3:40

Answer: (c) Half past 3

Sam rotates a spinner anticlockwise. It starts at point A and finishes at point B. What is the degree of movement of the spinner?

1. 30°
2. 270°
3. 45°
4. 90°

Answer: (d) 90°

How many right angles are there inside the figure?

1. 12
2. 8
3. 4
4. 10

Answer: (c) 4

Find the value of angle a.

1. 115°
2. 37°
3. 28°
4. 45°

Answer: (b) 37°

Fill in the blanks: i. There are ___ acute angles inside the given figure. ii. There are ___ reflex angles in the figure. iii. There are ___ right angles in the figure.

1. i - 2, ii - 2, iii - 2
2. i - 1, ii - 3, iii - 3
3. i - 2, ii - 1, iii - 2
4. i - 1, ii - 2, iii - 2

Answer: (d) i - 1, ii - 2, iii - 2

The measure of the supplement of an angle is 30° less than 5 times the measure of the complement. Find the measure of the complement of the angle.

1. 30°
2. 15°
3. 20°
4. 60°

Answer: (a) 30°

In a triangle one angle measures twice the measure of the smallest angle and another angle measures 30° more than complement of the smallest angle. What is the measure of the supplement of the smallest angle?

1. 120°
2. 30°
3. 60°
4. 150°

Answer: (d) 150°