Law of Cosines Answers
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1
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Law of sines:
A
2.7 unitsB
3.2 unitsC
4.5 unitsD
5.3 units2
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What is the length of line segment RS? Use the law of sines to find the answer. Round to the nearest tenth.
A
2.2 unitsB
2.4 unitsC
3.0 unitsD
3.3 units3
Law of sines:
A
4.6 unitsB
5.7 unitsC
6.9 unitsD
9.2 units4
Law of sines:
A
1.8 unitsB
2.0 unitsC
3.2 unitsD
3.7 units5
Law of sines:
A
2.0 units and 4.6 unitsB
2.1 units and 8.7 unitsC
2.3 units and 7.8 unitsD
2.6 units and 6.6 units6
Law of sines:
A
52°B
59°C
64°D
67°7
Law of sines:
A
StartFraction (3) sine (66 degrees) Over sine (38 degrees) EndFraction
B
StartFraction sine (66 degrees) Over (3) sine (38 degrees) EndFraction
C
StartFraction (3) sine (38 degrees) Over sine (66 degrees) EndFraction
D
StartFraction sine (38 degrees) Over (3) sine (66 degrees) EndFraction
8
Consider the diagram and the proof below.Given: In △ABC, AD ⊥ BCProve:
A
b = cB
StartFraction h Over b EndFraction = StartFraction h Over c EndFraction
C
csin(B) = bsin(C)D
bsin(B) = csin(C)9
Law of sines:
A
20°B
34°C
41°D
53°10
Law of sines:
A
1.5 unitsB
2.1 unitsC
2.9 unitsD
3.6 unitsDid you find these answers helpful?
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