AnswersIC Pre-Cal - DeeringLaw of Sines

Law of Sines Answers

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1
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sin(A) =

Question illustration
A
b/c
B
b/h
C
h/b
D
h/c
2
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sin(B) =

A
a/c
B
a/h
C
h/a
D
h/c
3

If sin(A) = h/b, then bsin(A) = h.If sin(B) = h/a, then asin(B) = h.Therefore, bsin(A) = asin(B).Which of the following equations is equivalent to bsin(A) = asin(B)?

A
Option
B
Option
C
Option
4

What is the approximate side length of c?

A
2
B
4
C
12
D
18
5

Which equation can you use to solve for b?

A
16/sin(54) = b/sin(82)
B
16/sin(44) = b/sin(82)
C
16/sin(44) = b/sin(54)
6

The measure of angle B is about °.

A
12
B
6
C
4
D
2
7

The measure of angle C is about °.

A
12
B
6
C
4
D
2

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Law of Sines Answers — IC Pre-Cal - Deering