Polygons and angles

What is the formula for the sum of interior angles of a polygons?

• S = 180 (n)

• S = 180 (n - 2)

• S = sum of angles / n

• S = 180 (n + 2)

What is the sum of interior angle of a nonagon?

• 1260

• 720

• 540

• 1080

What is the sum of the interior angles of a hexagon?

• 1260

• 720

• 540

• 900

What is the sum of the interior angles of an octagon?

• 900

• 540

• 1080

• 1260

What is the formula for each interior angle of a polygons?

• = 180 (n - 2)

• =180 (n-2) / n

• =180 (n + 2) / n

• = 180 (n + 2)

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

• 140

• 108

• 120

• 135

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

• 108

• 120

• 135

• 140

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

• 140

• 120

• 108

• 135

A polygon is regular when

• all angles are equal

• all sides are equal

• all angles and sides are equal

• neither angles not sides are equal

A nonagon has

• 9 sides

• 10 sides

• 7 sides

• 8 sides