Math Vocab Set 2

Front 1

Adjacent Angles

Back 1

2 nonstraight and nonzero angles that have a common side in the interior of the angle formed by the noncommon sides

Front 2

Biconditional

Back 2

a conditional and its converse where the converse is also true; uses the words if and only if

Front 3

Conditional

Back 3

a statement that tells if one thing happens, another will follow

Front 4

Converse

Back 4

a reversed conditional

Front 5

Counterexample

Back 5

a situation in a conditional for which the antecedent is true, but the conditional is false

Front 6

Vertical Angles

Back 6

2 angles that share a common vertex and whose sides form 2 lines

Front 7

Two Column Proof

Back 7

Numbered statements and corresponding reasons that show an argument in logical order

Front 8

Theorem

Back 8

important mathematical statements which can be proven by postulates, definitions, and/or previously proved theorems

Front 9

Proof

Back 9

a sequence of justified conclusions used to prove the validity of an if-then statement

Front 10

Paragraph Proof

Back 10

A kind of proof in which the steps are written out in complete sentences, in paragraph form. Identical in content, but different in form.

Front 11

Inductive reasoning

Back 11

the process of arriving at a conclusion based on a set of observations

Front 12

deductive reasoning

Back 12

the process by which a person makes conclusions based on previously known facts

Front 13

If A=B and if B=C then ____

Back 13

A=C

Front 14

if a=b then

Back 14

a+c=a+b

Front 15

if a=b then

Back 15

a-c=b-c

Front 16

if a=b then

Back 16

ac=bc

Front 17

if a=b and c does not equal zero then

Back 17

a/c=b/c

Front 18

For any real number

Back 18

a=a

Front 19

For all real numbers

Back 19

if a=b then b=a

Front 20

for all real numbers

Back 20

if a=b and b=c then a=c

Front 21

figure a=

Back 21

figure a

Front 22

if fig. a=fig. b then

Back 22

fig b=fig. a

Front 23

if figure a=figure b and figure b=figure c

Back 23

then figure a=figure c

Front 24

if two congurent angles form a pair of verticle angles

Back 24

then they are congruent.

Front 25

Reflection across two parallel lines is euivalent

Back 25

to a translation of twice the distance between the lines and a direction perpedicular to the lines.

Front 26

Reflection across two intersecting lines is equivalent to

Back 26

a roataion about the point of intersection through twive the measure of the angle between the lines.