Lesson plan

Discover trigonometric ratios in the coordinate plane by using right triangle geometry

teaches Common Core State Standards CCSS.Math.Content.HSF-TF.A.2 http://corestandards.org/Math/Content/HSF/TF/A/2
teaches Common Core State Standards CCSS.Math.Practice.MP4 http://corestandards.org/Math/Practice/MP4
teaches Common Core State Standards CCSS.Math.Practice.MP8 http://corestandards.org/Math/Practice/MP8

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