Calculate The Mean Measure Of The Exterior Angles Of A Triangle. An exterior angle of a triangle is equal to the sum of the two opposite interior angles. Since X and J are remote interior angles in relation to the 120 angle you can use the formula.
Therefore each exterior angle is equal to 180 60 120 Answer verified by Toppr Upvote 72. The measure of an exterior angle our w of a triangle equals to the sum of the measures of the two remote interior angles our x and y of the triangle. The Exterior Angle Theorem states that.
This means we can add the 64 and 45 together and subtract that from 180 to find the.
In this video we are given a diagram with a triangle the exterior angle and two opposite interior angles are marked with algebraic expressions. There are two rules for solving for an Exterior Angle of a Triangle. Now since the sum of all interior angles of a triangle. A sin α b sin β so.