Show your class that finding angle measures is a regular calculation with a resource that provides 12 problems dealing with the measures of angles in regular polygons. Pupils use formulas for the sum of measures of angles in a polygon to calculate measures of individual angles or the number of sides in a polygon.

Concepts

interior angles, polygons, regular polygons, quadrilaterals, triangles, hexagons, pentagons, heptagon, octagons

Show More Show Less

Additional Tags

math

Show More Show Less

Instructional Ideas

• Use triangles to make polygons to show why the formula for the sum of the interior angles works
• Lead a discussion on why it is important to know the polygon is regular when trying to find the measure of one angle

Classroom Considerations

• Pupils should be able to solve multi-step linear equations

Pros

• The video provides the formulas needed to work the problems
• Solutions show the work needed for the calculations

Cons

• None

Common Core

HSG-CO.C.10 MP1 MP2