Which of the following are exterior angles? Check all that apply. A.<2B. <4C.<3D.<1E.<5F.<6
Accepted Solution
A:
An exterior angle of a triangle is an angle formed by one side of the triangle and the extension of an adjacent side of the triangle.FACTS: Every triangle has 6 exterior angles, two at each vertex. Notice that the "outside" angles that are "vertical" to the angles inside the triangle are NOT called exterior angles of a triangle.1. Angles 1, 5 and 6 are inteior angles of the given triangle.2. Angle 3 is vertical to the interior angle 5.3. Angles 2 and 4 are exterior angles of the triangle.Answer: correct options are A and B.