math Flashcards Preview

hist0ru > math > Flashcards

Flashcards in math Deck (25)
Loading flashcards...
1
Q

Postulate

A

rulwa that are accepted without proofs

2
Q

length of a segmant

A

one point minus the other point

3
Q

angle bisector

A

a ray that divided an angle into 2 adjacent angles

4
Q

Distance formula

A

AB= the square root of x-x squared +y-y squared

5
Q

vertical angles

A

sides form two pairs of opposite rays

6
Q

linear pair

A

non- commen sides are opposite rays

7
Q

conditional Statement

A

hypothesis then conclusion

8
Q

If then form

A

if this then that

9
Q

Converse

A

switch hypothesis and conclusion

10
Q

inverse

A

Negate both hypothesis and conclusion

11
Q

contrapositive

A

switch hypothesis and conclusion and negate it

12
Q

Perpendicular lines

A

two lines intersect to form a right angle

13
Q

Line perpendicular to a plane

A

a line that intersects the plan, and is perpendicular to every line in the plane that intersects it

14
Q

bi conditional statement

A

if and only if

15
Q

Parralel lines

A

if they are coplanor and do not intersect

16
Q

skew lines

A

lines that do not intersect and are NOT coplanor

17
Q

Transversal

A

A line that intersects two or more coplanor lines at different points

18
Q

Corresponding Angles

A

congruent

19
Q

Alternate interior

A

congruent

20
Q

alternate exterior

A

congruent

21
Q

consecutive interior

A

supplementary

22
Q

Perpendicular transversal

A

If a transversal is perpendicular to one of 2 parallel lines then it is perpendicular to the other

23
Q

_______ Angle converse

A

If two lines are cut by a transversal so that ________ angles are congruent then the lines are parallel

24
Q

Rise over run is

A

y - y

x-x

25
Q

y equal mx plus b

A
y=mx+b
y=3 x=2 m=5
3=5 times 2 plus b
3=10+b
b=-7
y=5x-7