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# Exterior Angles Theorems

## Exterior angles equal the sum of the remote interiors.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Exterior Angles in Given Triangles

by Math Writing Team //at grade

Apply the Exterior Angles Theorems.

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## Exterior Angles Theorems.

This concept teaches students the sum of exterior angles for any polygon and the relationship between exterior angles and remote interior angles in a triangle.

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## Exterior Angle Theorems

Exterior Angles Theorems Interactive

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## Triangle Relationships

Exterior Angles Theorems Interactive

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• Video

## Exterior Angles Theorems Principles

This video gives more detail about the mathematical principles presented in Exterior Angles Theorems.

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• Video

## Exterior Angles Theorems Examples

This video shows how to work step-by-step through one or more of the examples in Exterior Angles Theorems.

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## Exterior Angles Theorems Quiz

Ten question quiz. Students must solve for missing angles in triangles using the exterior angle theorem of triangles. Students need to use basic arithmetic and algebra skills to solve the problems.

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• Practice
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## Exterior Angles Theorems Practice

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• Interactive Exercise

## Solve for the Unknown Remote Interior Angle

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• Interactive Exercise

## Exterior Angle Theorem True or False

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• Interactive Exercise

## Solve for Remote Interior Angle

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• Interactive Exercise

## Solve for Exterior Angle

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• Interactive Exercise

## Multiple Step Triangle Sum Theorem for x

Use the triangle sum theorem to find the measure of an unknown angle.

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• Interactive Exercise

## Multiple Step Triangle Sum Theorem for y

Use the triangle sum theorem to find the measure of an unknown angle.

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• Interactive Exercise

## Exterior Angle Theorem True False

Presents a question about the exterior angle theorem.

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• Interactive Exercise

## What's an Exterior Angle?

Presents a question about the exterior angle theorem.

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• Interactive Exercise

## What's a Non-Adjacent Interior Angle?

Presents a question about the exterior angle theorem.

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• Interactive Exercise

## Symbolic Exterior Angle Theorem

Presents a question about the exterior angle theorem.

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• Interactive Exercise

## Symbolic Exterior Angle Theorem 2

Presents a question about the exterior angle theorem.

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• Interactive Exercise

## Visual and Symbolic Exterior Theorem

Presents a question about the exterior angle theorem.

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• Interactive Exercise

## Find the Measure of the Remote Interior Angle

Presents a question about the exterior angle theorem.

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• Interactive Exercise

## Find the Measure of the Exterior Angle

Presents a question about the exterior angle theorem.

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• Interactive Exercise

## Find the Measure of the Exterior Angle 2

Presents a question about the exterior angle theorem.

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• Interactive Exercise

## Find the Measure of the Interior Angle

Presents a question about the exterior angle theorem.

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• Interactive Exercise

## Find the Measure of the Interior Angle 2

Presents a question about the exterior angle theorem.

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• Interactive Exercise

## Find the Measure of the Exterior Angle 3

Presents a question about the exterior angle theorem.

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• Interactive Exercise

## Find the Measure of the Exterior Angle 4

Presents a question about the exterior angle theorem.

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• Interactive Exercise

## Find the Measure of the Exterior Angle 5

Presents a question about the exterior angle theorem.

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• Interactive Exercise

## Find the Measure of the Exterior Angle 6

Presents a question about the exterior angle theorem.

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• Interactive Exercise

## Find the Measure of an Angle

Presents a question that can be solved with the exterior angle theorem or triangle sum theorem.

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• Interactive Exercise

## Find the Measure of an Angle 2

Presents a question that can be solved with the exterior angle theorem or triangle sum theorem.

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• Critical Thinking

## Exterior Angles Theorems Discussion Questions

A list of student-submitted discussion questions for Exterior Angles Theorems.

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## Exterior Angles Theorems Pre Read

To encourage students’ critical thinking about vocabulary concepts, to allow students to reflect on their knowledge of individual vocabulary words, and to increase vocabulary comprehension using the Vocabulary Self-Rate.

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## Exterior Angles Theorems Post Read

To encourage students’ critical thinking about vocabulary concepts, to allow students to reflect on their knowledge of individual vocabulary words, and to increase vocabulary comprehension using the Vocabulary Self-Rate.

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## Exterior Angles Theorem Four Square Concept Matrix

Summarize the main idea of a reading, create visual aids, and come up with new questions using a Four Square Concept Matrix.

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• Real World Application

## Exterior Angles Theorem

So...does our formula apply only to convex polygons? Or can we fix things up so that it applies to concave polygons also?

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• Study Guide