Solving Angle Relationships and Equations

The video tutorial explains how to determine the value of X and the measures of angles A, B, C, and D formed by intersecting lines. It introduces the concept of vertical angles, which are equal, and demonstrates solving for X by setting expressions equal. The tutorial also covers calculating angle measures using the value of X and explains supplementary angles, which sum to 180 degrees. The video concludes with a call to action to subscribe for more tutorials.

What do intersecting lines form?

• Two angles

• Eight angles

• Four angles

• Six angles

Which angles are equal when lines intersect?

• Adjacent angles

• Vertical angles

• Complementary angles

• Supplementary angles

What is the relationship between angles A and D?

• They are vertical angles

• They are supplementary

• They are adjacent angles

• They are complementary

How do you set up an equation for vertical angles?

• Set the angles equal to each other

• Subtract the angles

• Multiply the angles

• Add the angles together

What is the first step in solving the equation 11x - 1 = 9x + 11?

• Divide both sides by x

• Multiply both sides by 2

• Subtract 9x from both sides

• Add 1 to both sides

What is the value of x in the equation 11x - 1 = 9x + 11?

• 5

• 8

• 6

• 7

How do you find the measure of angle B?

• Add 65 to x

• Use the value of x in 11x - 1

• Use the value of x in 9x + 11

• Subtract x from 180

What is the measure of angle B?

• 70 degrees

• 65 degrees

• 60 degrees

• 75 degrees

If angle B is 65 degrees, what is angle C?

• 60 degrees

• 65 degrees

• 70 degrees

• 75 degrees

What is the sum of supplementary angles?

• 360 degrees

• 270 degrees

• 180 degrees

• 90 degrees