8
QuizMultiple Choice
Area and Perimeter of Triangles — Unit test
Question 8 • OH-Geometry B
Law of cosines: a2 = b2 + c2 – 2bccos(A)
Answer
A
72 = 82 + 112 – 2(8)(11)cos(N)B
82 = 72 + 112 – 2(7)(11)cos(M)C
72 = 82 + 112 – 2(8)(11)cos(P)D
82 = 72 + 112 – 2(7)(11)cos(P)