This video tutorial covers angle pairs and one-step equations in grade 7 math. It explains the properties of vertical, adjacent, complementary, and supplementary angles, and demonstrates how to solve problems using these properties. The tutorial also includes examples of solving one-step equations involving angles, and concludes with more complex angle problem-solving exercises.

What is the focus of the lesson in this video?

• Fractions and decimals

• Probability and statistics

• Angle pairs and one-step equations

• Algebraic expressions

In angle ABC, which letter represents the vertex?

• None of the above

• A

• B

• C

How can triangle ABC be labeled?

• Only clockwise

• Neither

• Only counterclockwise

• Either clockwise or counterclockwise

What is true about vertical angles?

• They are adjacent

• They are equal

• They are complementary

• They are supplementary

What do complementary angles add up to?

• 45 degrees

• 180 degrees

• 360 degrees

• 90 degrees

What do supplementary angles add up to?

• 180 degrees

• 360 degrees

• 90 degrees

• 45 degrees

If angle BFC is 50 degrees, what is angle CFD?

• 50 degrees

• 140 degrees

• 40 degrees

• 90 degrees

What is the measure of angle AFB if angle BFC is 50 degrees and angle CFD is 90 degrees?

• 40 degrees

• 140 degrees

• 50 degrees

• 90 degrees

If angle AFB is 40 degrees, what is the measure of its vertical angle?

• 140 degrees

• 90 degrees

• 50 degrees

• 40 degrees

What is the total of all angles around a point?

• 360 degrees

• 270 degrees

• 180 degrees

• 90 degrees