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# Comparing Angles and Sides in Triangles

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Practice Comparing Angles and Sides in Triangles
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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.

## Comparing Angles and Sides in Triangles

This concept teaches students the relationship between opposite angles and sides in triangles and how to use this relationship to compare triangles.

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• Video

## Comparing Angles and Sides Principles

This video gives more detail about the mathematical principles presented in Basic Geometric Definitions.

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• Video

## Comparing Angles and Sides Examples

This video gives more detail about the mathematical principles presented in Basic Geometric Definitions.

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## Comparing Angles and Sides in Triangles Quiz

Nine question quiz. Students must use their understanding of the Triangle Sum Theorem and the relationship between the angles & lengths of the sides of a triangle. Students must order the sides or angles of triangles in order and explain their reasoning.

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• Practice

## Comparing Angles and Sides in Triangles Practice

Practice Comparing Angles and Sides in Triangles questions

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• Interactive Exercise

## What do Congruent Triangles Have in Common?

Checks your understanding of triangle congruence.

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• Interactive Exercise

## What is CPCTC

Checks your understanding of the acronym CPCTC.

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• Interactive Exercise

## Conditional Statement of Triangle Congruence

Checks your understanding of triangle congruence.

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• Interactive Exercise

Checks your understanding of what corresponding means.

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• Interactive Exercise

## What May Be Corresponding?

Checks your understanding of what corresponding means.

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• Critical Thinking

## Comparing Angles and Sides in Triangles Discussion Questions

A list of student-submitted discussion questions for Comparing Angles and Sides in Triangles.

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## Comparing Angles and Sides in Triangles Pre Read

To activate prior knowledge, make personal connections, reflect on key concepts, encourage critical thinking, and assess student knowledge on the topic prior to reading using a Quickwrite.

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## Comparing Angles and Sides in Triangles Post Read

To organize ideas, increase comprehension, synthesize learning, demonstrate understanding of key concepts, and reinforce vocabulary using a Quickwrite.

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## Comparing Angles and Sides in Triangles 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

## The Secret of the Kitchen Triangle

Find out how triangles are incorporated into the design of home kitchens.

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• Real World Application

## Triangle Sum Theorem

Do the angles in a triangle always add up to 180 degrees? How are the lengths of the sides of a triangle controlled by the sizes of the angles in Spherical Geometry?

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• Study Guide