Find the measure of three angles by determining the value of x

The video tutorial explains how to solve for X in an equation involving a straight angle. It begins by introducing the concept of a straight angle and its measurement of 180 degrees. The instructor sets up an equation with like terms, combines them, and solves for X by dividing. The tutorial concludes with a reminder to write down the answers.

What is the measure of a straight angle?

• 45 degrees

• 360 degrees

• 180 degrees

• 90 degrees

Which of the following represents the equation for the sum of angles in a straight line?

• 3X + X + 2X = 90 degrees

• 3X + X + 2X = 45 degrees

• 3X + X + 2X = 180 degrees

• 3X + X + 2X = 360 degrees

What is the result of combining the terms 3X, X, and 2X?

• 5X

• 6X

• 7X

• 8X

How do you solve the equation 6X = 180 degrees for X?

• Multiply both sides by 6

• Subtract 6 from both sides

• Add 6 to both sides

• Divide both sides by 6

What is the value of X when 6X = 180 degrees?

• 35 degrees

• 30 degrees

• 25 degrees

• 20 degrees