Understanding Exterior and Interior Angles

The video tutorial explains how to solve an equation involving an external angle of a polygon. It starts by setting up the equation with the external angle and the sum of interior angles. The tutorial then demonstrates how to manipulate the equation by eliminating constants and isolating the variable x to find its value.

What is the expression for the external angle in the given problem?

• 2x - 17

• 3x - 17

• 3x + 17

• 2x + 17

Tags

CCSS.8.G.A.5

Which two expressions are combined to form the interior angle equation?

• 3x and 17

• 25 and 2x + 3

• 2x and 25

• 3x and 25

What is the sum of the constants in the interior angle equation?

• 25

• 28

• 45

• 17

Tags

CCSS.HSA.REI.A.1

What operation is performed to eliminate the constant -17 from the equation?

• Divide both sides by 17

• Multiply both sides by 17

• Add 17 to both sides

• Subtract 17 from both sides

Tags

CCSS.4.MD.A.2

What is the final value of x after solving the equation?

• 45

• 17

• 3

• 28

Tags

CCSS.4.MD.A.2