Understanding Angle Pairs

What is the sum of the measures of two complementary angles?

• 45°

• 90°

• 180°

• 360°

Which of the following is NOT a type of angle pair discussed in the lesson?

• Adjacent angles

• Complementary angles

• Supplementary angles

• Vertical angles

If two angles are complementary and one angle measures 30°, what is the measure of the other angle?

• 30°

• 60°

• 120°

• 90°

If two angles are complementary and one angle is twice the other, what are the measures of the angles?

• 45° and 45°

• 30° and 60°

• 60° and 120°

• 90° and 90°

What is the sum of the measures of two supplementary angles?

• 360°

• 270°

• 90°

• 180°

If two angles are supplementary and one angle measures 110°, what is the measure of the other angle?

• 90°

• 70°

• 100°

• 80°

Which of the following statements is true about vertical angles?

• They are always adjacent.

• They are always supplementary.

• They are always congruent.

• They are always complementary.

If two vertical angles measure 3x and 5x - 20, what is the value of x?

• 25

• 20

• 15

• 10

What is the relationship between two angles that are both vertical and supplementary?

• They add up to 90°.

• They are equal to each other.

• They add up to 180°.

• They are adjacent.

If angle A and angle B are vertical angles and angle A measures 45°, what is the measure of angle B?

• 45°

• 180°

• 90°

• 135°