Naming Angles and Angle Relationships

What is the measure of the missing angle if one angle is 52 degrees?

• 128 degrees

• 130 degrees

• 118 degrees

• 140 degrees

What is the measure of the missing angle if one angle is 159 degrees?

• 21 degrees

• 19 degrees

• 25 degrees

• 15 degrees

What is the measure of a right angle?

• 45 degrees

• 90 degrees

• 120 degrees

• 180 degrees

What is an angle?

• An angle is formed by two rays that share a common endpoint.

• An angle is a measure of the distance between two points.

• An angle is a type of polygon with three sides.

• An angle is a straight line that does not change direction.

What is a reflex angle?

• An angle that measures exactly 180 degrees.

• An angle that measures less than 90 degrees.

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

• An angle that measures exactly 360 degrees.

If one angle measures 30 degrees, what is the measure of its complementary angle?

• 30 degrees

• 45 degrees

• 60 degrees

• 90 degrees

What is the measure of a straight angle?

• 90 degrees

• 180 degrees

• 360 degrees

• 45 degrees

What is the relationship between vertical angles?

• Vertical angles are equal in measure.

• Vertical angles are supplementary.

• Vertical angles are complementary.

• Vertical angles are always acute.

What are supplementary angles?

• Two angles whose measures add up to 90 degrees.

• Two angles whose measures add up to 180 degrees.

• Two angles that are equal in measure.

• Two angles that are adjacent to each other.

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 90 degrees but less than 180 degrees.

• An angle that measures exactly 180 degrees.