Basics of Polygons

What is a polygon?

• A closed plane figure with straight sides

• A figure with 3 dimensions

• A figure that is clsed but can have curved or straight sides

• Any plane figure that is closed

Tags

CCSS.2.G.A.1

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

• (n-2) x 180 / n

• n x 180

• 360

• (n-2) x 180

What is the sum of the exterior angles of a polygon?

• 540

• 180

• 360

• 360 x n

What is the difference between a regular polygon and irregular polygon?

• A regular polygon has straight sides. An irregular polygon has curved sides.

• A regular polygon has equal sides and angles. An irregular polygon has atleast one different side and angle.

• A regular polygon has equal sides but an irregular polygon has different angles.

• None

Tags

CCSS.2.G.A.1

How can you find one interior angle of a regular polygon? There are two answers.

• (n-2) x 180 / n

• 180 - ext ang

• 360 /n

• (n-2) x 180

How can you find one exterior angle of a polygon? There are two answers.

• (n-2) x 180 / n

• 360 / n

• 360 - int ang

• 180 - int ang

How many sides does a decagon have?

• 12

• 10

• 9

• 5

Tags

CCSS.2.G.A.1