Interior Exterior Angles and Sums of Various Polygons

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(n-2)180

Formula for n-gon

160

What is the angle measure of any interior angle of a regular polygon with 18 sides?

108

What is the angle measure of any interior angle of a regular polygon with 5 sides?

120

What is the angle measure of any interior angle of a regular polygon with 6 sides?

135

What is the angle measure of any interior angle of a regular polygon with 8 sides?

15

What is the measure of any exterior angle of a regular polygon with 24 sides?

72

What is the measure of any exterior angle of a regular polygon with 5 sides?

40

What is the measure of any exterior angle of a regular polygon with 9 sides?

360

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

360

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

1440

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

1800

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

900

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

720

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

3240

What is the sum of the interior angles of a icosagon (20 sides)

1260

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

1080

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

540

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

360

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

180

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


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