Instructional Video4:46
Brian McLogan

Given a polygon, solve for x and all of the interior angles using sum of interior angles

12th - Higher Ed
👉 Learn how to solve for an unknown variable in the interior angle of a polygon. A polygon is a plane shape bounded by a finite chain of straight lines. The interior angle of a polygon is the angle between two sides of the polygon. The...
Instructional Video3:40
Brian McLogan

Determine the sum of interior angles when given one exterior angle ex 3

12th - Higher Ed
👉 Learn how to determine the sum of interior angles of a polygon. A polygon is a plane shape bounded by a finite chain of straight lines. A regular polygon is a polygon whose sides are congruent (equal). The interior angle of a polygon...
Instructional Video
Khan Academy

Khan Academy: Triangle Angle Properties: Sum of Interior Angles of a Polygon

9th - 10th
Students explore the interior angles of a polygon by explanding on the concept that a triangle has 180 degrees and developing a formula for all polygons.