Exterior Angles of Triangles

​Exterior Angles of Triangles

The exterior angle is equal to the sum of the two opposite interior angles.

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Multiple Choice

Which of the following terms best describes Angle d?

• Remote interior angle

• Corresponding angle

• Exterior angle

• Interior angle

Multiple Choice

Which of the following angles can you add together to equal angle d? 

• Angle a and Angle b
• Angle b and Angle c
• Angle a and Angle c
• Angle a and Angle b and Angle c

Multiple Choice

Find the measure of the indicated angle. 

• 145
• 113
• 102
• 78

Multiple Choice

• A
• B
• C
• D

Multiple Choice

What is the value of the missing angle?

• 90

• 100

• 20

• 120

Multiple Choice

Find the measure of each angle indicated.

• 88
• 30
• 110
• 85

Multiple Choice

What is the value of the missing angle?

• 105

• 80

• 55

• 25

Multiple Choice

Find the measure of the missing angles.

• A

• B

• C

• D

Multiple Choice

Find the measure of the missing angles.

• A

• B

• C

• D

Multiple Choice

Find the measure of the missing angles.

• A

• B

• C

• D

Multiple Choice

Find the measure of the missing angles.

• A

• B

• C

• D

Multiple Choice

Find the indicated angle measure. (What is ?)

• 51°

• 37°

• 167°

• 41°

Multiple Choice

Find the indicated angle. (What is ?)

• 91°

• 81°

• 89°

• 109°

Multiple Choice

What is the measure of angle b?

• 36^o
• 56^o
• 63^o
• 117^o

Multiple Choice

Solve for x

• 49

• 58

• 70

• 94

Multiple Choice

Solve for x

• 70

• 23

• 120

• 130

Multiple Choice

Solve for x

• 60

• 120

• 40

• 65

Multiple Choice

• A
• B
• C
• D

Multiple Choice

Find the measure of the angle indicated. 

• 139°
• 66°
• 138°
• 116°

Multiple Choice

Find the measure of the missing angle.

• 90^o
• 10⁰
• 130^o
• 50^o