Interior And Exterior Angles Of A Triangle Video. The following diagram shows that the sum of angles in a triangle is 180. There are two rules for solving for an Exterior Angle of a Triangle.
If the side of a triangle is extended the angle formed outside the triangle is the exterior angle. See 021 - 100 in video at bottom to see how to quickly do. The sum of the interior angles is always 180 implies x y z 180.
For our equilateral triangle the exterior angle of any vertex is 120.
The sum of the interior angles is always 180 implies x y z 180. If we consider the diagram we saw earlier of triangle π΄π΅πΆ where line πΆπ΅ has been extended angle π₯ is an exterior angle. Interior exterior angles triangles definition examples video lesson transcript angle worksheets thoughtfully brought together and subsequently published at August 3 2020 238 am This interior exterior angles triangles definition examples video lesson transcript angle worksheets above is one of the pictures in interior and exterior angle. After working your way through this lesson and video you will be able to.