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lesson 5
1 hour

Tangent Lines and the Tangent Function


Description

This lesson is designed to address standard G-C.A.4, which involves constructing tangent lines to a given circle from a point outside the circle. The lesson begins by revisiting the geometric origins of the tangent function from Algebra II Module 2 Lesson 6. Students then explore the standard by means of construction by compass and straightedge and by paper folding. Students are provided several opportunities to create mathematical arguments to explain their constructions.

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Credits

From EngageNY.org of the New York State Education Department. Precalculus and Advanced Topics Module 4, Topic A, Lesson 5. Available from engageny.org/resource/precalculus-and-advanced-topics-module-4-topic-a-lesson-5; accessed 2015-05-29.
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