Exterior Angles of a Triangle

Exterior Angles of a Triangle

By Brian Cox

​The measure of an exterior angle of a triangle is equal to the sum of its remote interior angles.

Math Response

What is the measure of the exterior angle in the diagram?

Type answer here

Correct Answer: 131

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Math Response

What is the measure of the exterior angle in the diagram?

Type answer here

Correct Answer: 146

Deg^°

Rad

Math Response

What is the measure of the exterior angle in the diagram?

Type answer here

Correct Answer: 149

Deg^°

Rad

Math Response

What is the measure of the exterior angle in the diagram?

Type answer here

Correct Answer: 59

Deg^°

Rad

Math Response

What is the measure of the exterior angle in the diagram?

Type answer here

Correct Answer: 111

Deg^°

Rad

Math Response

What is the measure of the exterior angle in the diagram?

Type answer here

Correct Answer: 140

Deg^°

Rad

Sometimes instead of looking for the measure of an exterior angle, we may be looking for the measure of one of the interior angles of the triangle.

We can use the relationship between the exterior angle and its remote interior angles in this situation as well.

​What is the measure of x in the diagram shown?

Math Response

What is the measure of x in the diagram shown?

Type answer here

Correct Answer: 33

Deg^°

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Math Response

What is the measure of x in the diagram shown?

Type answer here

Correct Answer: 63

Deg^°

Rad

Math Response

What is the measure of x in the diagram shown?

Type answer here

Correct Answer: 37

Deg^°

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Math Response

What is the measure of x in the diagram shown?

Type answer here

Correct Answer: 64

Deg^°

Rad

Math Response

What is the measure of x in the diagram shown?

Type answer here

Correct Answer: 40

Deg^°

Rad

Math Response

What is the measure of x in the diagram shown?

Type answer here

Correct Answer: 116

Deg^°

Rad