8.1-Law of the Sines 33 22 11 Law of the Sines & Requirements Examples Practice Problems.
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Transcript of 8.1-Law of the Sines 33 22 11 Law of the Sines & Requirements Examples Practice Problems.
8.1-Law of the Sines
3
2
1Law of the Sines & Requirements
Examples
Practice Problems
2
Law of the Sines
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Law of the Sines
Requirements Two sides and an angle opposite to one of
them SSA
Two angles and any side AAS or ASA
If these conditions are not met, the problem cannot be solved with the Law of the Sines
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New Calculator Tools
Arcsine sin-1
Arc-cosine cos-1
Arctangent tan-1
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New Calculator Tools (Cont.)
Reverse the trig function process, where:
the arc functions provide for:
hyp
oppsin
hyp
opp1sin
hyp
adjcos
hyp
adj1cos
adj
opptan
adj
opp1tan
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Example
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Example (Cont.)
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Another Example
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Another Example (Cont.)
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Tips
Check your calculator settings Remember the sum of all angles in a
triangle is 180 degrees or pi radians Not all problems can be solved with the
Law of Sines
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Practice Problems
Page 577Problems 1-18