Finding the value of x using supplementary angles - Free Math Videos

The video tutorial explains the concept of vertical and supplementary angles using intersecting lines. It demonstrates how to set up and solve an equation to find the value of X, emphasizing that vertical angles are equal and supplementary angles sum up to 180 degrees. The tutorial concludes by reinforcing these key concepts.

What are vertical angles?

• Angles that form a straight line

• Angles that are equal and opposite when two lines intersect

• Angles that are adjacent to each other

• Angles that add up to 90 degrees

Why can't the angles in the problem be set equal to each other?

• Because they are both acute angles

• Because they are both obtuse angles

• Because one is acute and the other is obtuse

• Because they are not on the same line

What is the sum of supplementary angles?

• 45 degrees

• 360 degrees

• 180 degrees

• 90 degrees

What is the first step in solving the equation 2X + 4X + 108 = 180?

• Subtract 108 from both sides

• Add 108 to both sides

• Divide by 6

• Multiply by 6

What is the value of X in the equation 6X + 108 = 180?

• 10

• 18

• 15

• 12