Polygons Interior Angles

Front

What do you call a polygon with eight sides?

Back

Octagon

Front

What is the formula to 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 sum of the interior angles of a polygon with 8 sides?

Back

720°

Front

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

Back

135°

Front

How do you find the measure of an interior angle of a regular polygon?

Back

Divide the sum of the interior angles by the number of sides.

Front

What is the value of X if the interior angles of a polygon are 130° and 50°?

Back

X = 130°

Front

What is the measure of the interior angle of a regular pentagon?

Back

108°

Front

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

Back

5 sides (pentagon).

Front

What is the relationship between the number of sides and the sum of the interior angles of a polygon?

Back

The sum increases as the number of sides increases.

Front

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

Back

120°