Interior and Exterior Angles in Polygons

Question 1

What formula can we use to find the measure of ONE interior angle in a regular polygon?

Accepted Answer

180*(n-2) / n

Question 2

What is the measure of ONE exterior angle in a regular 53-gon?

Accepted Answer

6.79°

Question 3

What is the measure of ONE interior angle in a 33-gon?

Accepted Answer

169.09°

Question 4

How many triangles can we make (from one vertex) in a pentagon?

Accepted Answer

3

Question 5

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

Accepted Answer

360°

Question 6

How many triangles can we make (from one vertex) in a nonagon?

Accepted Answer

7

Question 7

What is the sum of the interior angles of a 76-gon?

Accepted Answer

13,320°

Question 8

How many triangles form an octagon?

Accepted Answer

6

Question 9

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

Accepted Answer

720°

Question 10

What is the measure of ONE exterior angle of a regular pentagon?

Accepted Answer

72°

Question 11

What is the measure of ONE interior angle in a regular heptagon?

Accepted Answer

128.57°

Question 12

What formula can we use to find the number of triangles in a polygon? (n is number of sides)

Accepted Answer

n-2

Question 13

How many triangles form a 63-gon?

Accepted Answer

61

Question 14

What formula can we use to find the sum of interior angles? (n=number of sides)

Accepted Answer

180*(n-2)

Question 15

How many triangles can we make (from one vertex) in a 45-gon?

Accepted Answer

43

Question 16

What formula can we use to find the measure of ONE exterior angle in a regular polygon?

Accepted Answer

360/n

Question 17

The measure of an exterior angle of a regular polygon is 30.° Find the number of sides.

Accepted Answer

12

Questions 17