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# Tangent Lines

## Lines perpendicular to the radius drawn to the point of tangency.

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.

## Tangent Lines

by CK-12 //basic

Apply tangent theorems.

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## Tangent Lines to Circles

Prove and use theorems involving lines that are tangent to circles.

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• PLIX

## Tangent Lines

Tangent Lines Interactive

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• PLIX

## Tangent Lines

by CK-12 //basic

Tangent Lines Interactive

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• Video

## Tangent Lines Principles - Basic

by CK-12 //basic

This video provides the student with a walkthrough on tangent lines.

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• Video

## Tangent Lines Examples - Basic

by CK-12 //basic

This video provides the student with a walkthrough of one or more examples from the concept "Tangent Lines".

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• Video

## Tangent Lines Principles

This video gives more detail about the mathematical principles presented in Tangent Lines.

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• Video

## Tangent Lines Examples

This video shows how to work step-by-step through one or more of the examples in Tangent Lines.

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• Video

## Tangent Lines to a Circle

by CK-12 //basic

States ands prove the tangent to a circletTheorem.

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• Video

## Tangent Lines to a Circle Example Problems

by CK-12 //basic

Provides example problems of determining unknown values using the properties of a tangent line to a circle.

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• Video

Overview

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• Practice
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## Tangent Lines Practice

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• Critical Thinking

## Tangent Lines Discussion Questions

A list of student-submitted discussion questions for Tangent Lines.

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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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To stress understanding of a concept by summarizing the main idea and applying that understanding to create visual aids and generate questions and comments using a Concept Matrix.

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## Tangent Lines KWL Chart

With this KWL Chart, reflect on your prior knowledge of a concept, come up with questions you’re curious about, and come up with answers from the reading.

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• Real World Application

## Swing Rides

Learn how NASA uses tangent lines when launching space probes.

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• Study Guide

## Properties of a Circle Study Guide

This study guide reviews the terminology for circles (tangent, arcs, central angles) and the equation for a circle.

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## Tangent Line

by CK-12 //basic

This is an interactive website that allows you to make tangent lines.

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• Flashcards

## Tangent Lines Flashcards

by CK-12 //basic

These flashcards help you study important terms and vocabulary from Tangent Lines.

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