# Unit 3.pdf - Section 1 ● Standard notation labels the...

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Section 1Standard notation labels the anglesA, B, andC,with their opposite sides labeleda,b,andc.See the figure to the rightSolving an oblique triangle requires knowledge of one side and any two other parts ofthe triangle:Two angles and any side (AAS or ASA)Two sides and an angle opposite one of them (SSA)Three sides (SSS)Two sides and their included angle (SAS)IfABCis a triangle with sidesa, b,andc, thenWe solve triangles using the Law of Sines by noting that, if we are given two angles andone side of the triangle, we are, therefore, given three parts of a proportion. We can,therefore, find the missing side of the triangle by solving for the missing part of theproportion.Section 2If you are given three sides or two sides and its included angle, the ratios would beincomplete. To solve those types of problems, we need the Law of Cosines.If we wish to find the area of a non-right triangle, we can solve the triangle, so that we

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Term
Fall
Professor
N/A
Tags
Law of sines, triangle, opposite sides, Triangle geometry, Laws Of Sin
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