Determining two angles that are complementary

The video tutorial explains complementary angles, which are two angles that add up to 90 degrees. It guides students through identifying 90-degree angles in figures and finding angles that are complementary to a given angle. The tutorial emphasizes understanding angle relationships and the sum of angles, providing practical examples and engaging students in problem-solving exercises.

What is the definition of complementary angles?

• Two angles that add up to 180 degrees

• Two angles that add up to 90 degrees

• Two angles that are equal

• Two angles that are supplementary

If a line is 180 degrees, what is the measure of half of the line?

• 90 degrees

• 45 degrees

• 120 degrees

• 60 degrees

Which angle is complementary to angle FDG?

• Angle GDE

• Angle EDC

• Angle BDF

• Angle ADC

What is the sum of two complementary angles?

• 360 degrees

• 180 degrees

• 90 degrees

• 45 degrees

If angle GDE is complementary to angle FDG, what is their combined measure?

• 90 degrees

• 360 degrees

• 180 degrees

• 45 degrees