Shapes and Their Angles

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

• 360 degrees

• 180 degrees

• 90 degrees

• 120 degrees

How many sides does a quadrilateral have?

• 3

• 5

• 6

• 4

What is the measure of each interior angle in a regular pentagon?

• 135 degrees

• 120 degrees

• 90 degrees

• 108 degrees

How many degrees are in each interior angle of a regular hexagon?

• 120 degrees

• 150 degrees

• 90 degrees

• 60 degrees

What is the name of a 7-sided polygon?

• pentagon

• hexagon

• octagon

• heptagon

What is the measure of each interior angle in a regular octagon?

• 150°

• 120°

• 90°

• 135°

How many sides does a nonagon have?

• 9

• 8

• 7

• 10

What is the measure of each interior angle in a regular decagon?

• 144°

• 150°

• 135°

• 120°

What is the name of an 11-sided polygon?

• decagon

• hendecagon

• dodecagon

• pentagon

What is the measure of each interior angle in a regular dodecagon?

• 90 degrees

• 180 degrees

• 120 degrees

• 150 degrees