Complementary and Supplementary Angles

What are supplementary angles?

• Angles that add up to 90°.

• Angles that add up to 180°.

• Angles that are equal in measure.

• Angles that add up to 360°.

What is the relationship between complementary angles and right angles?

• Complementary angles are equal to each other.

• Complementary angles add up to form a right angle (90°).

• Complementary angles are always acute angles.

• Complementary angles are supplementary angles.

If one angle is 60°, what is the measure of its complementary angle?

• 30°

• 45°

• 60°

• 90°

If two angles are supplementary and one angle measures 120°, what is the other angle?

• 30°

• 45°

• 60°

• 90°

What are complementary angles?

• Angles that add up to 90°.

• Angles that add up to 180°.

• Angles that are equal in measure.

• Angles that are adjacent to each other.

If one angle is 30°, what is the measure of its supplementary angle?

• 120°

• 135°

• 150°

• 180°

These angles are...

• Complementary

• Supplementary

• Adjacent

• Vertical

Can two angles be both complementary and supplementary?

• Yes, they can.

• No, they cannot.

• Only if they are right angles.

• Only if they are acute angles.

What do you call angles that are opposite each other when two lines intersect?

• Adjacent angles

• Complementary angles

• Vertical angles

• Supplementary angles

If two angles are complementary and one angle measures 45°, what is the other angle?

• 30°

• 45°

• 60°

• 90°