quadrilateral vocab

Question 1

pentagon

Answer 1

5 sides

Question 2

hexagon

Answer 2

6sides

Question 3

septagon

Answer 3

seven sides

Question 4

octagon

Answer 4

8 sides

Question 5

monagon

Answer 5

9 sides

Question 6

decagon

Answer 6

10 sides

Question 7

dodecagon

Answer 7

12 sides

Question 8

20-agon

Answer 8

20 sides

Question 9

convex

Answer 9

has no diagonal with points outside the polygon

Question 10

concave

Answer 10

has at least 1 diagonal outside of the polygon

Question 11

how to find sum of inter angle

Answer 11

180(n-2)

Question 12

sum of ext <

Answer 12

360

Question 13

quadrilateral

Answer 13

4 sided polygon
sum of int < is 360

Question 14

kite

Answer 14

-2 pairs of consecutive sides are congruent
- diagonals are perpendicular
- longer diagonal bisects the other
- one diagonal bisects opposite angles
- one pair of opposites < congruent ( < of none = sides)
- can use pythag

Question 15

trapozoids

Answer 15

1 pair of opposite sides are ||

Question 16

midsegment

Answer 16

in a trapozoid
- || to bases
- length is 1/2 of the sum of 2 bases
ab+cd/2

Question 17

isos trapezoid

Answer 17

non || sides or the legs are congruent
base < are congurent
diagonals congruent

Question 18

|| - ogram

Answer 18

both pairs of opp sides ||
both pairs of opp sides =
opp < =
consecutive < are supp
diagonals bisect each other

Question 19

rectangle

Answer 19

all < are RT <
diagonals =

Question 20

rhombus

Answer 20

all sides =
diagonals bisect <
diagonals are perpendicular

Question 21

square

Answer 21

all ||-ogram, rectangle, and rohmbus properties

Question 22

how to prove a ||-ogram

Answer 22

1 if both pars of opp sides are ||
2 if both pairs of opp sides are =
3 if one pair of opp sides is both || and =
4 if the diagonlas bisect eachother
5 if both pairs of opp < are =

Question 23

how to prove a rectangle

Answer 23

1 if all < are rt<s
2 if its a ||-ogram and has 1 rt <
4 if opp sides are || and = and only to its opp

Question 24

how to prove rhombus

Answer 24

if a ||-ogram has consecutive sides =

Question 25

how to prove a square

Answer 25

if all sides = and ||

Question 26

how to prove a kite

Answer 26

if a quaderlateral has 2 disjoint pairs of consececutive sides =

Question 27

how to prove isos trapoziod

Answer 27

if a trap has = non || sides