Week 15 Polygon Angles Flashcard

Front

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

Back

(n - 2) × 180 degrees.

Front

How many sides does a nonagon have?

Back

9 sides.

Tags

CCSS.2.G.A.1

Front

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

Back

1260 degrees.

Front

What are the properties of opposite sides in a parallelogram?

Back

Opposite sides are congruent.

Tags

CCSS.HSG.CO.C.11

Front

What are the properties of opposite angles in a parallelogram?

Back

Opposite angles are congruent.

Tags

CCSS.HSG.CO.C.11

Front

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

Back

360 degrees.

Front

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

Back

360 degrees.

Front

What type of polygon is a parallelogram?

Back

A quadrilateral.

Tags

CCSS.5.G.B.4

Front

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

Back

Interior angle + Exterior angle = 180 degrees.

Front

How many degrees are in each exterior angle of a regular pentagon?

Back

72 degrees.