Triangle angles - PowerPoint PPT Presentation

Section 10.1

Section 10.1. We will be finding exact values of sine and cosine of angles. (using formulas ) Recall trig values of special right triangle angles and quadrantal angles. Simplified radical form (no calculators!). Cosine formulas :. Sine formulas :. Review : special angles. 30°. 2.

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-Triangle notes -classifying triangle worksheet -Additional polygon worksheets

TODAY : Triangles. -Triangle notes -classifying triangle worksheet -Additional polygon worksheets. Classifying Triangles According to the Length Of their Sides. 3 Types of Triangles. What is a Triangle:. t he word tri angle means three (tri) angles . every triangle has three

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Line segment . Distance between two points.

Point. A location. Line . Opposite directions infinitely. WHAT YOU SHOULD ALREADY KNOW. Line segment . Distance between two points. Ray . Goes in one direction infinitely. Angle. Two rays that share a common vertex. Vertex. The corner of an angle or shape.

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