Exploring Complementary and Supplementary Angles

The video tutorial explains the concepts of adjacent, complementary, and supplementary angles. It begins with an introduction to angles ABC and DBA, highlighting their shared vertex and side. The tutorial then defines adjacent angles and explores the concept of complementary angles, where two angles sum to 90 degrees, forming a right angle. The video also covers supplementary angles, which add up to 180 degrees, forming a straight angle. The tutorial concludes with a review of these key concepts, emphasizing the relationships between angles and their geometric properties.

What do we call two angles that share a common side?

• Adjacent angles

• Opposite angles

• Complementary angles

• Vertical angles

If angle DBA is 40 degrees and angle ABC is 50 degrees, what is the measure of angle DBC?

• 80 degrees

• 110 degrees

• 100 degrees

• 90 degrees

What term describes two angles whose measures add up to 90 degrees?

• Adjacent angles

• Supplementary angles

• Complementary angles

• Perpendicular angles

What do we call the line segments that form a right angle?

• Adjacent

• Perpendicular

• Intersecting

• Parallel

What is the measure of angle DBC if it is a right angle?

• 90 degrees

• 180 degrees

• 45 degrees

• 60 degrees

What term is used for two angles whose measures add up to 180 degrees?

• Adjacent angles

• Supplementary angles

• Complementary angles

• Perpendicular angles

If angle XYZ is 60 degrees and angle MNO is 120 degrees, what is their sum?

• 90 degrees

• 200 degrees

• 180 degrees

• 240 degrees

What do you call an angle that measures exactly 180 degrees?

• Obtuse angle

• Right angle

• Straight angle

• Acute angle

Which of the following pairs of angles are considered to be supplementary?

• Two angles measuring 45 degrees each

• One angle measuring 130 degrees and another measuring 50 degrees

• Two angles measuring 90 degrees each

• One angle measuring 60 degrees and another measuring 120 degrees

What happens when two supplementary angles are adjacent?

• They form a right angle

• They form a straight angle

• They remain independent

• They become complementary