Law of Sines
Sides
Ambiguous Case
Law of Cosines
Inverse of...
100
What is sinA/a and sinB/b equal to?
sinC/c
100
What are all of the sides using Law of Sine?
Side a, side b, and side c.
100
What is an ambiguous case?
More than one triangle.
100
What is missing from this equation? a^2+c^2-2ac cos B.
b^2
100

What is the value of sin^-1(25/5)?

None possible

200
What are the six parts of the triangle?
Angle A, Angle B, Angle C, Side a, Side b, and Side c.
200
What is across from angle C on a triangle?
Side c.
200

How do we check if there exists more than one triangle?

Find the missing angle and subtract it from 180 then add to the given angle. <180 we good

200

How many equations do we have for the Law of Cosines?

3.

200
What is the sine inverse of 21sin88/26?
53.8
300
What is the next step in this equation? sinA/a=sinB/b
Cross multiply.
300
What is equivalent to side AC?
Side b.
300
If the angle is included between two sides, it is called the what?
Side angle side.
300

What two cases do we have with the law of cosines?

SSS

SAS

300
What is the sine inverse of 19sin97/22?
59.
400
What is sine inverse of 7sin30degrees/6?
35.7
400
How many side can be in a triangle?
3.
400
In which case can there be zero triangles?
Side side angle.
400
What is the missing information? c^2=-2ab cos C.
a^2+b^2
400

What is the the inverse of tan-1

tan

500
What is the missing information? angle A=30, b=7, a=6, c=9, and angle C=81
Measurement of angle B.
500
Can any 3 side lengths create a triangle?

No

500
Is this an ambiguous case? a=20, b=11, and B=29. Find A.
Yes. A= 62 or 118.
500
Which case would be used to find the measurement of angle A?
a^2=b^2+c^2-2bc cos A.
500
What is the sine inverse of 6sin103/26?
12.9
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