Interior Angles And Exterior Angles Of A Triangle. An exterior angle of a triangle or any polygon is formed by extending one of the sides. 1 When dragging the white vertices did the measures of the other angles change.
The angle sum theorem tells us that the sum of the interior angles of a triangle is always 180 degrees. Here is LAF L A F with L L measuring 73 73. In this video I go over two examples where we use two interior angles of a triangle and one exterior angle to solve for x.
Interior angle is defined as the angle formed between two adjacent sides of a triangle.
The relationship between the exterior angle and the interior angles of a triangle The measure of the exterior angle of a triangle equals the sum of two remote interior angles. The relationship between the exterior angle and the interior angles of a triangle The measure of the exterior angle of a triangle equals the sum of two remote interior angles. Set up an equation with the sum of the three angles equating it with 180 and solve for x. In these pdf worksheets the measure of one of the interior angles of each triangle is presented as an algebraic expression.