Angle Measures of Polygons

What is the sum of all of the exterior angles in a regular 13-gon?

• 152.3 degrees

• 360 degrees

• 1,960 degrees

• 2,340 degrees

What is the measure of one interior angle of a regular dodecagon?

• 135 degrees

• 144 degrees

• 150 degrees

• 180 degrees

What is the sum of all interior angles of any heptagon?

• 360 degrees

• 720 degrees

• 840 degrees

• 900 degrees

One interior angle of a regular polygon measures 120 degrees. How many sides does it have?

• 4

• 5

• 6

• 7

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Mathematical Equivalence

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What is the measure of one exterior angle of a polygon in which the sum of the interior angles is 5,400 degrees?

• 11.25 degrees

• 32 degrees

• 30 degrees

• 168.75 degrees

A polygon has a sum of interior angle measures equal to 1620°. How many sides does the polygon have?

• 9

• 11

• 13

• 7

What is the SUM of the EXTERIOR angles of a hexagon?

• 360

• 120

• 60

• 720

What is the measure of one INTERIOR angle of a regular octagon?

• 60

• 45

• 1080

• 135

What is the SUM of the INTERIOR angles of a 12-gon?

• 3600

• 1800

• 2160

• 12