Angle Relationships

What are angle relationships?

• Angle relationships refer to the ways in which angles interact with each other, including concepts such as complementary, supplementary, vertical, and adjacent angles.

• Angle relationships are only about complementary angles.

• Angle relationships are unrelated to geometry.

• Angle relationships only apply to triangles.

What is the measure of an angle if it is vertical to a 100° angle?

• 90°

• 80°

• 100°

• 120°

If two angles are supplementary and one measures 156°, what is the measure of the other angle?

• 12°

• 18°

• 24°

• 30°

What is a complementary angle?

• Two angles that add up to 90 degrees.

• Two angles that add up to 180 degrees.

• Two angles that are equal in measure.

• Two angles that are adjacent to each other.

What is the relationship between angles formed by parallel lines and a transversal?

• Corresponding angles are equal.

• All angles are supplementary.

• Alternate interior angles are always acute.

• Transversal angles are always obtuse.

What is a supplementary angle?

• Two angles that add up to 90 degrees.

• Two angles that add up to 180 degrees.

• Two angles that are equal in measure.

• Two angles that are adjacent to each other.

How do you determine if two angles are complementary?

• Two angles are complementary if their measures add up to 90°.

• Two angles are complementary if they are both acute angles.

• Two angles are complementary if they are both right angles.

• Two angles are complementary if their measures add up to 180°.

What is the sum of the measures of angles in a triangle?

• 90°

• 180°

• 360°

• 270°

What are vertical angles?

• Angles that are adjacent to each other when two lines intersect.

• Angles that are opposite each other when two lines intersect. They are always congruent (equal in measure).

• Angles that are formed by the intersection of two parallel lines.

• Angles that are supplementary to each other.

How do you find the measure of an unknown angle in a linear pair?

• Subtract the known angle from 90°.

• Add the known angle to 180°.

• Subtract the known angle from 180°.

• Multiply the known angle by 2.