Understanding Angles: A Quiz

What type of angle is exactly 90 degrees?

• Acute angle

• Right angle

• Obtuse angle

• Straight angle

Which of the following angles is greater than 90 degrees but less than 180 degrees?

• Acute angle

• Right angle

• Obtuse angle

• Straight angle

If an angle measures 45 degrees, what type of angle is it?

• Acute angle

• Right angle

• Obtuse angle

• Reflex angle

Which tool is commonly used to measure angles?

• Ruler

• Protractor

• Compass

• Scale

An angle measures 180 degrees. What type of angle is this?

• Acute angle

• Right angle

• Obtuse angle

• Straight angle

If an angle is less than 90 degrees, what is it called?

• Acute angle

• Right angle

• Obtuse angle

• Straight angle

What is the measure of a full rotation in degrees?

• 90 degrees

• 180 degrees

• 270 degrees

• 360 degrees

Which angle is larger: a 120-degree angle or a 60-degree angle?

• 60-degree angle

• 120-degree angle

If two angles are complementary, what is the sum of their measures?

• 90 degrees

• 180 degrees

• 270 degrees

• 360 degrees

What is the measure of an angle that is supplementary to a 70-degree angle?

• 20 degrees

• 90 degrees

• 110 degrees

• 180 degrees