MathScore Practice: Polygon Angles

Description: Use formulas for interior and exterior angles of regular polygons to solve problems, including sums.

Adaptive Learning Progression: First you calculate sums, then later you calculate angles based on sums.

Sample Levels (out of 8)

Solve.

1.	What is the sum of the exterior angles of a pentagon? °

Solve.

1.	An interior angle of a regular polygon measures 135°. How many sides does the polygon have?	2.	An exterior angle of a regular polygon measures 72°. How many sides does the polygon have?
3.	An interior angle of a regular polygon measures 120°. How many sides does the polygon have?	4.	An exterior angle of a regular polygon measures 40°. How many sides does the polygon have?