Angle Relationships and Measures

The video tutorial covers various angle relationships, including supplementary, complementary, congruent, and vertical angles. It provides step-by-step solutions to angle problems using a calculator and explains the concepts of right angles and perpendicularity. The tutorial emphasizes understanding these concepts for solving related problems effectively.

What should you do before continuing with angle relationship problems?

• Read the textbook

• Watch part two videos

• Watch part one videos

• Solve practice problems

If angle ABD is 70° and angle DBC is 43°, what is the measure of angle ABC?

• 93°

• 83°

• 103°

• 113°

How do you find the measure of angle EBD if EBC is 55° and EBD is 20°?

• Subtract 20 from 55

• Divide 55 by 20

• Add 55 and 20

• Multiply 55 by 20

What is the measure of angle ABD if ABC is 110° and angle BDC is 36°?

• 94°

• 84°

• 74°

• 104°

If angle 1 is 112° on the Alabama state flag, what is the measure of the supplementary angle?

• 88°

• 68°

• 58°

• 78°

In a construction problem, if the total angle is 90° and one angle is 44°, what is the measure of the other angle?

• 36°

• 46°

• 56°

• 66°

What is the term for angles that add up to 90°?

• Supplementary

• Vertical

• Complementary

• Congruent

If two angles are congruent and form a linear pair, what can be said about them?

• They are complementary

• They are equal

• They are vertical

• They are supplementary

What is the measure of angle 3 if angle 2 is 40° and they are complementary?

• 50°

• 80°

• 70°

• 60°

If angles 5 and 7 are vertical angles and angle 5 is 40°, what is the measure of angle 7?

• 30°

• 40°

• 60°

• 50°