Interior and Exterior Angles of Polygons

Front

What is the sum of the interior angles of a polygon with n sides?

Back

S = (n-2) * 180°

Front

What is the measure of each interior angle of a regular polygon with n sides?

Back

S = ((n-2) * 180°) / n

Front

What is the measure of each exterior angle of a regular polygon with n sides?

Back

E = 360° / n

Front

In a triangle, what is the relationship between the interior angles?

Back

The sum of the interior angles is 180°.

Tags

CCSS.8.G.A.5

Front

What is a polygon?

Back

A closed figure with three or more straight sides.

Tags

CCSS.2.G.A.1

Front

What is a non-polygon?

Back

A shape that does not meet the criteria of a polygon, such as having curved sides.

Tags

CCSS.2.G.A.1

Front

In a parallelogram, what do the diagonals do?

Back

The diagonals bisect each other.

Tags

CCSS.HSG.CO.C.11

Front

What is the relationship between interior and exterior angles at a vertex of a polygon?

Back

Interior angle + Exterior angle = 180°.

Front

How do you find the measure of an unknown angle in a polygon?

Back

Use the sum of the interior angles formula and set up an equation.

Front

What is the formula for the sum of the exterior angles of any polygon?

Back

The sum of the exterior angles is always 360°.