
Law of Sines & Law of Cosines
Authored by Patrick Dennis
Mathematics
9th - 12th Grade
Used 6+ times

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11 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the Law of Cosines?
SinA/a=sinB/b=sinC/c
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Sam is building a swing set for his daughter . The two legs of the swing set will be 10 feet long. They will be joined at a 45 degree angle. How far apart will the legs be (to nearest 100th) ?
6.54
7.65
4.32
7.75
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which would you use to solve the following triangle? Angle A=30, Angle C=100 , b= 2
Heron's Formula
Law of Cosines
Law of Exponents
Law of Sines
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Solve for angle A to nearest degree
a=1, b= 2, c=2
29 degrees
33 degrees
44 degrees
28 degrees
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Solve for angle C to nearest degree.
Angle A = 77, a=20, c=15
46 degrees
50 degrees
47 degrees
41 degrees
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Under which circumstances will you use the Law of Cosines?
SSS, AAS
AAS, SAS
SSS, SAS
ASA, SAS
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Solve for side a to nearest 100th.
Angle A= 88 degrees, b= 8, c= 2
8.34
8.18
9.12
7.47
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