Angles and Their Measures

What is an acute angle?

• An angle that measures less than 90 degrees.

• An angle that measures exactly 90 degrees.

• An angle that measures more than 180 degrees.

• An angle that measures between 90 and 180 degrees.

What is the sum of angles in a triangle?

• 90 degrees

• 180 degrees

• 360 degrees

• 120 degrees

What is a straight angle?

• An angle that measures exactly 90 degrees.

• An angle that measures exactly 180 degrees.

• An angle that measures less than 90 degrees.

• An angle that measures more than 180 degrees.

What is a reflex angle?

• An angle that measures less than 90 degrees.

• An angle that measures exactly 180 degrees.

• An angle that measures more than 180 degrees but less than 360 degrees.

• An angle that measures between 90 and 180 degrees.

What is the measure of an obtuse angle in degrees?

• Less than 90 degrees

• Exactly 90 degrees

• More than 90 degrees but less than 180 degrees

• More than 180 degrees

If one angle in a right triangle measures 30 degrees, what is the measure of the other non-right angle?

• 30 degrees

• 45 degrees

• 60 degrees

• 90 degrees

How do you classify angles based on their measures?

• Acute, Right, Obtuse, Straight, or Reflex

• Acute, Right, Obtuse, Circular

• Acute, Right, Straight, Vertical

• Acute, Right, Obtuse, Horizontal

What is the relationship between complementary angles?

• Complementary angles are two angles whose measures add up to 90 degrees.

• Complementary angles are two angles that are equal in measure.

• Complementary angles are two angles that add up to 180 degrees.

• Complementary angles are two angles that are adjacent to each other.

What is the measure of a straight angle in degrees?

• 90 degrees

• 180 degrees

• 360 degrees

• 45 degrees

What is the measure of a right angle in degrees?

• 45 degrees

• 90 degrees

• 120 degrees

• 180 degrees