3-5

Question 1

polygon

Answer 1

a closed figure formed by coplanar segments such that each segment intersects exactly two other segments, on eat each endpoint, and no two segments with a common endpoint are collinear

Question 2

how do you name a polygon other than a triangle?

Answer 2

naming its consecutive vertices in a clockwise or counterclockwise order

Question 3

diagonal

Answer 3

a segment which connects 2 nonconsecutive vertices

Question 4

convex polygon

Answer 4

all diagonals are interior

Question 5

concave polygon

Answer 5

at least one diagonal is exterior

Question 6

how is a polygon classified?

Answer 6

by the number of sides it has

Question 7

3

Answer 7

triangle

Question 8

4

Answer 8

quadrilateral

Question 9

5

Answer 9

pentagon

Question 10

6

Answer 10

hexagon

Question 11

7

Answer 11

heptagon

Question 12

8

Answer 12

octagon

Question 13

9

Answer 13

nonagon

Question 14

10

Answer 14

decagon

Question 15

12

Answer 15

dodecagon

Question 16

n

Answer 16

n-gon

Question 17

regular polygon

Answer 17

convex polygon which is both equilateral and equiangular

Question 18

(th 3-3)

in a convex polygon (n-gon), the sum of the interior angles is ______

Answer 18

(n-2)180

Question 19

to find the number of sides in a polygon given the angle sum

Answer 19

(angle sum)/180 + 2

Question 20

(th 3-14)

the sum of the ext angles of a convex polygon is ______ degrees

Answer 20

360

Question 21

to find the measure of each angle of a regular polygon, divide ______ by the number of ______ and then subtract that from 180 (LPP)

Answer 21

360, sides