Interior and exterior angles of polygons(Mod 15.1)

Front

What is the formula to find the sum of the interior angles of a polygon?

Back

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

Front

How do you calculate the measure of each exterior angle of a regular polygon?

Back

Each exterior angle = 360° / n, where n is the number of sides.

Front

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

Back

180°.

Front

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

Back

360°.

Front

If a polygon has 5 sides, what is the sum of its interior angles?

Back

(5-2)180° = 540°.

Front

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

Back

360° / 5 = 72°.

Front

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

Back

(6-2)180° / 6 = 120°.

Front

If one interior angle of a regular octagon is 135°, what is the sum of all interior angles?

Back

(8-2)180° = 1080°.

Front

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

Back

Interior angle + Exterior angle = 180°.

Front

How many sides does a polygon have if the sum of its interior angles is 720°?

Back

(720° / 180°) + 2 = 6 sides.