Question 7 of 10 Which is the best definition of an exterior angle of a triangle? A. An angle that is formed by two segments that are sides of the triangle B. An angle that forms a linear pair with one of the interior angles of the triangle C. An angle that is formed by two segments that are not sides of the triangle D. An angle that is complementary to one of the interior angles of the triangle

Did you know that the exterior angles of a triangle have a fascinating relationship with the triangle’s interior angles? Specifically, the measure of each exterior angle is equal to the sum of the two opposite interior angles. This relationship, known as the Exterior Angle Theorem, is not just a mathematical curiosity; it’s a crucial tool in solving problems involving triangle measurements! When drawing triangles, one common mistake is to confuse exterior angles with interior angles. Remember that an exterior angle is formed by extending one side of the triangle, while the interior angles are the angles inside the triangle itself. Visualizing these structures clearly can save you from mix-ups and lead to accurate solutions in geometry problems!