This trigonometry video tutorial explains how to find the area of an oblique triangle. You should use heron's formula for SSS triangles where you are given all 3 sides of the triangle. You should use the sines formula to find the area of a SAS triangle where you are given two sides and the angle between the two sides.
Trigonometry - Free Formula Sheet:
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Solving Trig Equations - Finding All Solutions:
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Solving Trig Equations With Multiple Angles:
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Solving Trig Equations With Double Angles:
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Law of Sines:
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More Examples - Law of Sines:
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The Height of a Triangle - Heron's Formula:
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Law of Cosines:
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Polar Coordinates:
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Polar Equations to Rectangular Equations:
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Rectangular Equations to Polar Equations:
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How To Graph Polar Equations:
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Complex Numbers - De Moivre's Theorem:
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Dot Product of Two Vectors:
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Trigonometry Final Exam Review:
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Final Exams and Video Playlists:
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Full-Length Videos and Worksheets:
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