Complementary Angles and Their Measures

The video tutorial introduces the concept of complementary angles, where two angles sum up to 90 degrees. The teacher, Ishvarya Pahava, provides examples and explains how to find the complement of a given angle. Students are encouraged to participate by answering questions and solving practice problems. The lesson aims to ensure students understand complementary angles and can apply this knowledge to solve related problems.

What should students do if they have questions during the class?

• Write it down and ask next class

• Wait until the end of the class

• Raise their right hand

• Ask immediately

How should students indicate they want to answer a question?

• Raise their left hand

• Clap their hands

• Stand up

• Raise their right hand

What is the measure of angle AOM if angle MOB is 30 degrees and their sum is 90 degrees?

• 120 degrees

• 60 degrees

• 30 degrees

• 90 degrees

If angle PQR is 50 degrees, what is the measure of angle STU if they are complementary?

• 40 degrees

• 60 degrees

• 50 degrees

• 30 degrees

What is the sum of two complementary angles?

• 360 degrees

• 180 degrees

• 45 degrees

• 90 degrees

What is the definition of complementary angles?

• Two angles whose sum is 180 degrees

• Two angles whose sum is 90 degrees

• Two angles that are adjacent

• Two angles that are equal

What is the complement of a 40-degree angle?

• 60 degrees

• 40 degrees

• 50 degrees

• 70 degrees

If an angle measures 80 degrees, what is its complement?

• 40 degrees

• 30 degrees

• 20 degrees

• 10 degrees

If angle ABC is 25 degrees, what is the measure of its complement?

• 55 degrees

• 65 degrees

• 75 degrees

• 85 degrees

If angle XYZ is 15 degrees, what is the measure of its complement?

• 75 degrees

• 65 degrees

• 95 degrees

• 85 degrees