Angles of Polygons

Front

What is the measure of ONE interior angle in a regular hexagon (6 sides)?

Back

120°

Front

What is the SUM of the angle measures in a triangle (3 sides)?

Back

180°

Front

What is the SUM of the angle measures in a hexagon (6 sides)?

Back

720°

Front

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

Back

135°

Front

What is the measure of ONE interior angle in a regular pentagon (5 sides)?

Back

108°

Front

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

Back

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

Front

What is the measure of ONE exterior angle in a regular polygon?

Back

360° divided by the number of sides.

Front

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

Back

Interior angle + Exterior angle = 180°.

Front

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

Back

360°.

Front

How many sides does a polygon have if the sum of its interior angles is 540°?

Back

5 sides (pentagon).