Understanding Angles in Polygons

What is the formula to find the sum of all interior angles in a polygon?

• n minus 2 times 180

• n divided by 180

• n times 180

• n plus 2 times 180

How much do the exterior angles of any polygon add up to?

• 720 degrees

• 540 degrees

• 360 degrees

• 180 degrees

In a regular polygon, how do you find the measure of one interior angle?

• Subtract the sum of exterior angles from 360

• Multiply the sum of interior angles by the number of sides

• Add the sum of exterior angles to 360

• Divide the sum of interior angles by the number of sides

If a regular hexagon has an exterior angle of 60 degrees, what is the measure of its interior angle?

• 60 degrees

• 90 degrees

• 120 degrees

• 150 degrees

In a polygon with 5 sides, if the sum of four interior angles is 330 degrees, what is the measure of the fifth angle?

• 90 degrees

• 105 degrees

• 150 degrees

• 120 degrees

What is the measure of an unknown exterior angle if the other exterior angles are 90, 90, and 150 degrees?

• 120 degrees

• 30 degrees

• 60 degrees

• 90 degrees

If the sum of interior angles of a polygon is 2880 degrees, how many sides does the polygon have?

• 16

• 18

• 22

• 20

What is the name of a polygon with an exterior angle of 30 degrees?

• Hexagon

• Octagon

• Decagon

• Dodecagon

If a polygon has an interior angle of 170 degrees, what is the measure of its exterior angle?

• 10 degrees

• 20 degrees

• 40 degrees

• 30 degrees

What is the name of a polygon with 36 sides?

• Triacontagon

• Icosagon

• Hexadecagon

• Tetracontagon