Classify Polygons and Find the Sum of the Measures of the Interior Angles

Solve for x.

Solve for x.

A polygon has to have

• at least two sides

• at least three sides

• four or more sides

• no sides

Find the value of X.

• 60

• 120

• 85

• 55

Solve for x.

Classify this figure by side:

• hexagon

• octagon

• pentagon

• heptagon

What is TRUE about the interior angles of an irregular octagon?

• None of the interior angles can be congruent to each other.

• All of the interior angles are congruent.

Find the measure of one exterior angle of a regular decagon.

• 36 degrees

• 10 degrees

• 144 degrees

• 45 degrees

Find the measure of each interior angle of a regular 20-gon.

• 145 degrees

• 18 degrees

• 3240 degrees

• 162 degrees

Each interior angle of a regular polygon measures 60 degrees. How many sides does the polygon have?

• 3

• 5

• 12

• 6