Supplementary Angles and Equations

The video tutorial explains how to estimate the measurement of angle X by understanding that it forms a supplementary angle with another angle, summing to 180 degrees. The tutorial guides viewers through writing an equation to solve for X, which is found to be 48 degrees. It also covers finding the measurement of angle BAC and confirming it using a protractor.

What is the sum of supplementary angles?

• 180 degrees

• 90 degrees

• 45 degrees

• 360 degrees

If angle X and angle Y are supplementary and angle X is 132 degrees, what is angle Y?

• 48 degrees

• 132 degrees

• 180 degrees

• 90 degrees

What is the first step in writing an equation for the angle relationship?

• Add both angles to get 90 degrees

• Add both angles to get 180 degrees

• Subtract one angle from 180 degrees

• Multiply both angles

How do you isolate X in the equation X + 132 = 180?

• Subtract 132 from both sides

• Divide both sides by 132

• Add 132 to both sides

• Multiply both sides by 132

What is the value of X when you solve the equation X + 132 = 180?

• 132 degrees

• 48 degrees

• 180 degrees

• 90 degrees

What tool is used to confirm the measurement of angle BAC?

• Ruler

• Compass

• Protractor

• Calculator

What is the measurement of angle BAC?

• 132 degrees

• 48 degrees

• 90 degrees

• 180 degrees

Why is it important to confirm the measurement of angle BAC with a protractor?

• To ensure the angle is exactly 90 degrees

• To verify the calculated value is correct

• To measure the length of the angle

• To check if the angle is acute