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Unit 4: G4 Right Triangle Trigonometry
Contributors ........................................................ 3
UnitNarrative....................................................... 5 Lesson1:AnglesandSteepness........................................ 6 Lesson2:HalfaSquare.............................................. 17 Lesson3:HalfanEquilateralTriangle.................................. 29 Lesson4:RatiosinRightTriangles..................................... 42 Lesson5:WorkingwithRatiosinRightTriangles......................... 59 Lesson6:WorkingwithTrigonometricRatios ........................... 71 Lesson7:ApplyingRatiosinRightTriangles............................. 83 Lesson8:SineandCosineintheSameRightTriangle .................... 92 Lesson9:UsingTrigonometricRatiostoFindAngles.................... 104 Lesson10:SolvingProblemswithTrigonometry........................ 115 Lesson11:ApproximatingPi......................................... 125 Glossary.......................................................... 136 Attributions....................................................... 139
Contributors Writing Team
3
Unit 4
Table of Contents
