Answers A4142 Geometry 2 Test — TestQuestion 20

20

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Question 20 • A4142 Geometry 2

Law of cosines: a2 = b2 + c2 – 2bccos(A)

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Answer

A

62 = p2 + 82 – 2(p)(8)cos(39°)

B

p2 = 62 + 82 – 2(6)(8)cos(39°)

C

82 = 62 + p2 – 2(6)(p)cos(39°)

D

p2 = 62 + 62 – 2(6)(6)cos(39°)