7-1 Angles of Polygons

Front

What is the measure of one interior angle in a regular triangle (3 sides)?

Back

60°

Front

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

Back

120°

Front

What is the formula for one interior angle in a regular polygon?

Back

180(n−2)÷n

Front

The measures of one interior angle of a regular polygon is 140°. What is the name of the polygon?

Back

Nonagon

Front

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

Back

(n-2) × 180°

Front

How many sides does a polygon have if each interior angle measures 108°?

Back

5 sides (Pentagon)

Front

What is the measure of one exterior angle in a regular pentagon?

Back

72°

Front

If a polygon has 8 sides, what is the measure of one interior angle?

Back

135°

Front

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

Back

Interior angle + Exterior angle = 180°

Front

What is the measure of one exterior angle in a regular triangle?

Back

120°