Please help, I do not get how to do this homework question I got. 9. A triangle has two sides represented by vectors OA = (2,-3) and OB = (3,1). Determinethe measures of the angles in the triangle.

Answered: Image /qna-images/answer/a3c55123-a8b2-4832-83ee-fbbc246b308d.jpg

Answered: 9. A triangle has two sides represented…

Elementary Geometry For College Students, 7e

7th Edition

ISBN:9781337614085

Author:Alexander, Daniel C.; Koeberlein, Geralyn M.

Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.

Chapter3: Triangles

Section3.4: Basic Constructions Justified

Problem 38E

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9. A triangle has two sides represented by vectors OA = (2,-3) and OB = (3,1). Determine the measures of the angles in the triangle.