Finding the value of x using alternate interior angles - Online Tutor - Free Math Videos

The video tutorial explains how to find the value of X when given parallel lines and a transversal. It introduces the concept of alternating interior angles, which are equal, and demonstrates solving for X using these angles. The tutorial also covers calculating specific angle values using the solved X value.

What is the significance of the arrows on the lines in the context of parallel lines?

• They are used to measure the length of the lines.

• They signify that the lines are parallel.

• They show that the lines are perpendicular.

• They indicate the direction of the lines.

What is a transversal in the context of parallel lines?

• A line that divides a parallel line into two equal parts.

• A line that intersects two parallel lines.

• A line that is perpendicular to a parallel line.

• A line that runs parallel to another line.

What are alternating interior angles?

• Angles that are equal to each other but on different lines.

• Angles that are outside the parallel lines.

• Angles that are on the same side of the transversal.

• Angles that are on opposite sides of the transversal and inside the parallel lines.

How do you solve for X in the equation 2X - 15 = X + 55?

• Add X to both sides and then subtract 55.

• Multiply both sides by 2 and then subtract 15.

• Subtract X from both sides and then add 15.

• Add 15 to both sides and then divide by 2.

What is the measure of the angle calculated as 2 * 70 - 15?

• 130 degrees

• 125 degrees

• 140 degrees

• 110 degrees