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Lessons 
1. Basics
2. Deductive Reasoning
• 2.1 If-Then Statements
• 2.2 How To Prove Theorems • 2.3 Pairs Of Angles • 2.4 Perpendicular Lines
3 - Parallel lines
4 - Congruent Triangles
5 - Quadrilaterals
6 - Inequalities
7 - Similar Polygon
8 - Rt. Triangles
9 - Circles
10 - Constructions
• 10.1 Construction
• 10.2 Perpendicular Lines • 10.3 Parallel Lines • 10.4 Concurrent Lines • 10.5 Circles
11 - Areas of 2D objects
12 - Areas and Volumes
13 - Coordinates |
Trigonometry in Geometry
Objective: • Learning about tangent, sine, and cosine rations for an acute angle • Using tangent, sine, and cosine rations to solve right triangle problems
Lesson 8-2 Trigonometry in Geometry: Tangent Ratio: The measure of the leg opposite of the angle over the measure of the leg adjacent of the angle.
Tangent of / A = (Leg opposite / A )/ (Adjacent leg / A)
Tangent of / A = 3/4 Sine: The measure of the leg opposite of the angle over the measure of hypotenuse
Sine of / A = (Leg opposite / A )/ Hypotenuse Sine of / A = 4/5
Cosine: The measure of the leg adjacent to the angle over the measure of the hypotenuse
cosine of / A = (Leg adjacent to / A )/ Hypotenuse cosine of / A = 3/5
Easy way to remember trigonometric ratios: Soh, Cah, Toa or Oh Heck, Another Hour of Algebra
Sin A= Opp/ hyp Cos A= Adj/ hyp Tan A= Opp/ adj
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Quickie Math Copyright (c) 2000 Team C006354 |
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