Angle Relationships and Properties

This video tutorial covers section 1.5 on angle pair relationships, focusing on complementary and supplementary angles, adjacent angles, linear pairs, and vertical angles. It includes vocabulary definitions, example problems, and practice exercises to help students understand and calculate angle measures using these relationships.

What is the main focus of the video tutorial?

• Understanding geometric shapes

• Solving quadratic equations

• Describing angle pair relationships

• Learning about parallel lines

What is the sum of complementary angles?

• 45°

• 180°

• 90°

• 360°

If one angle is 30°, what is its complementary angle?

• 90°

• 60°

• 30°

• 150°

What is the sum of supplementary angles?

• 90°

• 360°

• 45°

• 180°

If one angle is 60°, what is its supplementary angle?

• 30°

• 120°

• 90°

• 60°

What defines adjacent angles?

• They share a common side

• They are equal in measure

• They form a straight line

• They sum to 90°

In Example 1, what is the complementary angle to 23°?

• 67°

• 157°

• 90°

• 23°

In Example 1, what is the supplementary angle to 23°?

• 23°

• 90°

• 157°

• 67°

In Example 2, what is the value of x if lmn = 4x - 2 and pqr = 9x + 1 are complementary?

• 8

• 7

• 6

• 5

What is a linear pair?

• Two angles that are equal

• Two angles that are adjacent and supplementary

• Two angles that sum to 90°

• Two angles that form a right angle