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RtTriangleApplications - 4.1 Right Triangle Applications...

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4.1 Right Triangle Applications Recommended Homework: 4.1: 13-21 odd, 23-28, 31, 32, 34, 38 2.3: 76, 83, 84 STRATEGIES: Draw a picture Label what you know Label what you want to find with a variable Find an equation representing what you want to know with what you want to find. ( You may need to use more than one equation and substitute!!). Solve the above equation Make sure you have answered all questions asked and included units! Terminology Angle of elevation- always measured from the horizon up Angle of depression- always measured from the horizon down NOTE: Neither of these can ever be measured from the vertical! 1
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4.1 Right Triangle Applications SOLVING TRIANGLES: Strategy: Find all sides o If 2 sides given use Pythagorean Theorem o If 1 side and an acute angle are given, use trig functions. Find all angles o Sum of the angle measures in a triangle = 180º o If you are given 2 sides and no acute angles, then use trig functions Example 1: Solve the following triangle 2 2 30º
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4.1 Right Triangle Applications 3
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4.1 Right Triangle Applications Example 2: Solve the triangle 5 2
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