Find Exterior Angle of a Triangle

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• A

• B

• C

• D

Which of the following terms best describes Angle d? 

• Remote interior angle

• Corresponding angle

• Exterior angle

• Interior angle

Calculate the exterior angle.

Mathematical Equivalence

ON

Use the Exterior Angle Theorem to find the value of x.

• 1.5

• 4.3

• 7

• A
• B
• C
• D

Find the measure of the exterior angle.

• 111º

• 39º

• 105º

• 85º

The exterior angle of a triangle is equal to the ​ (a)   of the two remote interior angles.

• sum

• difference

• product

• quotient

Find the measure of the indicated angle. 

• 145

• 113

• 102

• 78