Quadrilaterals

Question 1

non-simple curve

Answer 1

no intersection point

Question 2

simple curve

Answer 2

does not cross itself. opened and closed

Question 3

open curve

Answer 3

starting and ending point do not coincide

Question 4

closed curve

Answer 4

coinciding start and ending point

Question 5

interior

Answer 5

inside of closed curve

Question 6

exterior

Answer 6

outside of closed curve

Question 7

on the curvw

Answer 7

points on the border of the curve

Question 8

polygons

Answer 8

simple closed curves made of straight line segments

Question 9

diagonals

Answer 9

join 2 opposite vertices

Question 10

diagonals formula

Answer 10

n x (n-3)/2

Question 11

interior angles

Answer 11

angles inside the polygon

Question 12

interior angles formula

Answer 12

(n-2) x 180

Question 13

regular polygon

Answer 13

all angles and sides are equal

Question 14

irregular polygon

Answer 14

all angles and sides are not equal

Question 15

equilateral

Answer 15

all sides are equal

Question 16

equiangular

Answer 16

all angles are equal

Question 17

convex

Answer 17

all angles are less than 180

Question 18

concave

Answer 18

1 angle is more than 180

Question 19

parallel

Answer 19

two lines that wont meet

Question 20

transversal

Answer 20

line that crosses 2 parallel lines

Question 21

corresponding angles

Answer 21

angles on same side of transversal. 1 is in interior and 1 is in exterior

Question 22

alt. int. ang.

Answer 22

equal. inside parallel lines. on alternate sides of transversal

Question 23

alt. ext. ang.

Answer 23

exterior. alt. sides of transversal. equal.

Question 24

vertically opp angles

Answer 24

opp to eachother. equal.

Question 25

parallelogram

Answer 25

square, rhombus, rectangle

Question 26

rhombus

Answer 26

all sides are equal