AnswersA4142 Geometry 2Test — TestQuestion 12
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Question 12 • A4142 Geometry 2

The law of cosines for RST can be set up as 52 = 72 + 32 – 2(7)(3)cos(S). What could be true about RST?Law of cosines: a2 = b2 + c2 – 2bccos(A)

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Answer
A
r = 5 and t = 7
B
r = 3 and t = 3
C
s = 7 and t = 5
D
s = 5 and t = 3
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