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Name:
Law of Cosines 4
A
B
C
D
1
In
,
,
, and
, as shown in the diagram below. What is the
, to the
nearest degree
?
a)
53
c)
67
b)
59
d)
127
A
B
C
D
2
To the
nearest degree
, what is the measure of the largest angle in a triangle with sides measuring 10, 12, and 18 centimeters?
a)
109
c)
71
b)
81
d)
32