What is the exterior angle of a triangle?
An exterior angle of a triangle is equal to the sum of its two opposite non-adjacent interior angles. The sum of the exterior angle and the adjacent interior angle that is not opposite is equal to 180º.
Are exterior angles always 180?
The exterior angle of a triangle is the angle formed between one side of a triangle and the extension of its adjacent side. … In other words, the sum of each interior angle and its adjacent exterior angle is equal to 180 degrees (straight line).
How do you find the exterior side of a triangle?
How do you find the measure of exterior angles?
Why exterior angles add up to 360?
The sum of the exterior angles of any polygon (remember only convex polygons are being discussed here) is 360 degrees. … Because the exterior angles are supplementary to the interior angles, they measure, 130, 110, and 120 degrees, respectively. Summed, the exterior angles equal 360 degreEs.
What is the sum of 3 exterior angles of a triangle?
The sum of exterior angles of a triangle is equal to 360°. We know that there are 3 exterior angles in a triangle.