Angles of Polygons (Section 6-1)

Front

What is the measure of an interior angle for a regular octagon?

Back

135 degrees.

Front

What is the sum of exterior angles for any polygon?

Back

360 degrees.

Front

What is the formula for calculating the measure of an exterior angle in a regular polygon?

Back

360/n, where n is the number of sides.

Front

Define a regular polygon.

Back

A polygon with all sides and angles congruent.

Front

What is the measure of each interior angle of a regular hexagon?

Back

120 degrees.

Front

How do you calculate the sum of interior angles of a polygon?

Back

(n-2) × 180 degrees, where n is the number of sides.

Front

What is the measure of each exterior angle of a regular pentagon?

Back

72 degrees.

Front

If a polygon has 8 sides, what is the sum of its interior angles?

Back

1080 degrees.

Front

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

Back

Interior angle + Exterior angle = 180 degrees.

Front

What is the measure of an interior angle for a regular dodecagon (12-gon)?

Back

150 degrees.