Use vectors to find the interior angles of the triangle given the following sets of vertices....

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Question

Use vectors to find the interior angles of the triangle given the following sets of vertices....

Use vectors to find the interior angles of the triangle given the following sets of vertices. Round your answer, in degrees, to two decimal places.

(-2,0), (2,5), (-8,1)

math trigonometry

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Answer 1

Answer #1

Given that. C. (2,5) Hire, AB=-6iti A c = 41457 A (-2,0) B (-8,1) Mow, COS LA= AB. À c X IABILACI (-6)(4)+1(5) Je-68712 Ja215 In ABC. mL Atm LB + mLc=180° 119.20° +31.26°+m Lc=180° => [m Lc=29.540 ie. [C= 29.54 Hence, A= 119.200, B=81.260, C= 29.54

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Answer 2

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