polygons

Question 1

what is a polygon?

Answer 1

plane figure with at least three straight sides and angles and has to be closed

Question 2

triangle

Answer 2

3

Question 3

quadrilateral

Answer 3

4

Question 4

pentagon

Answer 4

5

Question 5

hexagon

Answer 5

6

Question 6

heptagon

Answer 6

7

Question 7

octagon

Answer 7

8

Question 8

nonagon, enneagon

Answer 8

9

Question 9

decagon

Answer 9

10

Question 10

dodecagon

Answer 10

12

Question 11

icosagon

Answer 11

20

Question 12

convex polygon

Answer 12

all diagonals can be connected on the inside of the polygon

Question 13

concave polygon

Answer 13

at least one diagonal connects on the outside of the polygon

Question 14

triangles formed by diagonals from one vertex

Answer 14

n-2

Question 15

sum of angles in a polygon

Answer 15

180(n-2)

Question 16

total # of diagonals in a n-gon

Answer 16

n(n-3)/2

Question 17

measure of each exterior angle

Answer 17

360/n

Question 18

in a polygon this word describes the relationship between any interior angle and its adjacent exterior angle

Answer 18

linear pair

Question 19

the more common name for a tetragon-the polygon whose interior angles add to 360

Answer 19

quadrilateral

Question 20

Pick’s theorem

Answer 20

A=i+p/2-1

Question 21

What does the word probability mean

Answer 21

the chances of you getting something

Question 22

the numeric values that a probability can be are between

Answer 22

0 and 1

Question 23

probabilities can be expressed in 4 different ways

Answer 23

percent,ratio,decimal,fraction

Question 24

the size of the feasible region

Answer 24

shaded

Question 25

the size of the sample space

Answer 25

total area

Question 26

equiangular

Answer 26

equal angles

Question 27

equilateral

Answer 27

equal side lengths

Question 28

If a triangle is equiangular is it also equilateral (or vice versa)? Why?

Answer 28

Yes, because angles in a polygon have equal sides opposite of the sides are also equal angles

Question 29

If a quad is equiangular is it also equilateral? Why?

Answer 29

no, it can have the same angles but have different side lengths (rectangle)

Question 30

If a quad is equilateral is it also equiangular? Why?

Answer 30

no, it can have equal side lengths but have different angles (rhombus)

Question 31

area for polygon

Answer 31

A=1/2aP

A=1/2(height)(sides*length)

Question 32

SohCahToa

Answer 32

opposite
hypotenuse
adjacent

Question 33

30-60-90

Answer 33

x-x/3-2x

Question 34

45-45-90

Answer 34

x-x-x/2