Remote Exterior Angle Theorem

Which two angles are the remote interior angles to Angle A?

• Angle C and Angle B

• Angle D and Angle B

• Angle C and Angle D

• Angle B and Angle A

What is the measure of x?

• 101°

• 111°

• 121°

• 131°

Find the indicated angle. (What is ?)

• 91°

• 81°

• 89°

• 109°

Find the indicated angle measure. (What is ?)

• 100°

• 39°

• 107°

• 73°

Find the indicated angle measure (What is ?)

• 80°

• 90°

• 70°

• 60°

Set up an equation to find x.

• 42 + 8x = 2 + 12x

• 2 + 12x + 42 = 8x

• 42 + 8x + 2 + 12x = 180

• 42 + 8x = 180

Set up an equation to find x.

• 52 + 5x + 16 + 10x + 8 = 180

• 52 - 5x + 16

• 52 + 5x + 16 = 10x + 8

• 52 + 10x + 8 = 5x +16

Solve for x.

• 1

• 2

• 3

• 4

Find the measure of x in degrees using the Exterior Angle Theorem.

• 40

• 54

• 60

• 42

Find the exterior angle, using the Exterior Angle Theorem. What is the measure of "?".

• A

• B

• C

• D