What Are The Properties Of Alternate Exterior Angles? The Alternate Exterior Angles Theorem states that, when two parallel lines are cut by a transversal , the resulting alternate exterior angles are congruent . ∠1≅∠7 and ∠4≅∠6 . What do alternate exterior angles add up to? If the transversal cuts across parallel lines (the usual case)
How Do You Find The Sum Of The Exterior Angles Of A Polygon? If a polygon is convex, then the sum of the measures of the exterior angles, one at each vertex, is 360° . Consider the sum of the measures of the exterior angles for an n -gon. N=180n−180(n−2) Distribute 180 . N=180n−180n+360 =360.
How Do You Find The Sum Of The Exterior Angles Of A Triangle? An exterior angle of a triangle is equal to the sum of the two opposite interior angles. The sum of exterior angle and interior angle is equal to 180 degrees. What is the sum of 3 exterior angles of a triangle? All