Angles in Polygons

Front

What is the SUM of the angle measures in a hexagon?

Back

720°

Front

What is the SUM of the angle measures in a nonagon?

Back

1260°

Front

What is the name of a 7 sided polygon?

Back

Heptagon

Front

Find the value of X if the angle measures are 100°, 110°, 150°, and X.

Back

168°

Front

Find the missing angle if the angle measures are 75°, 85°, 100°, and ?

Back

75°

Front

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

Back

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

Front

How many sides does a decagon have?

Back

10 sides.

Front

What is the sum of the angle measures in a quadrilateral?

Back

360°.

Front

What is the name of a polygon with 8 sides?

Back

Octagon.

Front

If a triangle has angles measuring 50° and 60°, what is the measure of the third angle?

Back

70°.