Find The Measure Of An Interior Angle Of A Triangle. This videos provides an example of how to determine the measure of a missing interior angle of a triangleSite. The angles inside a triangle are called interior angles.
Sum of angles in a triangle - Triangle angle sum theorem. Answer - The sum of the interior angles of a triangle is 180 degrees. The exterior angle have a sum of 360 3120 The square has 4 interior angles of 90o and 4 exterior angles of 90.
You can solve for Y.
α β γ 180 How do we know that. At each corner the exterior and interior angles are on a straight line so at each corner these two angles add up to 180. When two lines are cut by a third line known as a transversal then the four angles formed between the lines are called Interior Angles. You can solve for Y.