How To Find The Measure Of One Interior Angle Of An Octagon. 3-21803 60 Square 4-21804 90 Pentagon 5-21805 108. What is the measure of each interior angle.
For any octagons the sum of all of its internal angles is always 1080. Where n is the number of sides. How to find the measure of an interior angle.
The measure of the inscribed angle is half that of the arc that the two sides cut out of the circle.
You can do this with any convex polygon and by convex I mean that all the internal angles are less than 180 degrees. As the interior angle of the shape is made of two of these angles we can calculate it by doubling the size of the angle. Since we know that the sum of interior angles of octagon is. The measure of each interior angle of a regular polygon is equal to the sum of interior angles of a regular polygon divided by the number of sides.