Identifying Angles and Special Angle Pairs

This video tutorial, aimed at middle school students, covers the basics of angles, including definitions, types, and properties. It explains how to classify angles, such as acute, obtuse, right, and straight, and discusses complementary and supplementary angles. The lesson also covers adjacent and vertical angles, lines and planes, and the properties of angles formed by transversals. The tutorial includes examples and practice problems to reinforce learning, concluding with homework instructions.

What is the definition of an angle?

• A figure formed by two rays with a common endpoint

• A circle with a radius

• A shape with three sides

• A line segment with two endpoints

Which type of angle measures less than 90 degrees?

• Straight angle

• Acute angle

• Obtuse angle

• Right angle

What is the measure of a right angle?

• 180 degrees

• 90 degrees

• 360 degrees

• 45 degrees

What is the sum of the measures of two complementary angles?

• 45 degrees

• 360 degrees

• 180 degrees

• 90 degrees

Which of the following pairs of angles are supplementary?

• Two angles that are less than 90 degrees

• Two angles that are equal

• Two angles that add up to 180 degrees

• Two angles that add up to 90 degrees

What are adjacent angles?

• Angles that share a common side and vertex and do not overlap

• Angles that are opposite each other

• Angles that form a straight line

• Angles that are equal in measure

What is true about vertical angles?

• They are always supplementary

• They are always adjacent

• They are always congruent

• They are always complementary

What symbol is used to indicate parallel lines?

• A circle

• A single horizontal line

• Two vertical lines

• An upside-down T

What are alternate interior angles?

• Angles that are on opposite sides of the transversal and inside the parallel lines

• Angles that are on the same side of the transversal and outside the parallel lines

• Angles that are on the same side of the transversal and inside the parallel lines

• Angles that are on opposite sides of the transversal and outside the parallel lines

What are corresponding angles?

• Angles that are on opposite sides of the transversal and outside the parallel lines

• Angles that are on the same side of the transversal and outside the parallel lines

• Angles that are on opposite sides of the transversal and inside the parallel lines

• Angles that are in the same position when a transversal intersects two parallel lines