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23 Cards in this Set
 Front
 Back
FOUR STEP PLAN to solving a mathematical problem

1.EXPLORE the problem
2.PLAN the solution 3.SOLVE the problem 4.EXAMINE the solution 

line segment

has a definite beginning POINT
and a definite end POINT. 

AREA of a rectangle

the number of square units to cover the figure. Like carpet
AREA= L multiplied by width area = length x width ANSWER ALWAYS GIVEN IN SQUARE UNITS 

noncollinear

points NOT on the same line


CONDITIONAL STATEMENTS

AN IFTHEN STATEMENT LIKE A GURANTEE.
HAS 2 PARTS;HYPOTHESIS& CONCLUSION FOLLOWING IF= HYPOTHESIS FOLLOWING THEN=CONCLUSION IF "IF" IS NOT PART OF THE HYPOTHESIS, THEN "THEN" IS NOT PART OF THE CONCLUSION! 

collinear

on the same line.


CONTRAPOSITIVE of the conditional

FIRST TAKE THE CONVERSE OF THE CONDITIONAL(EXCHANGE THE HYPOTHES AND CONCLUSION) THEN NEGATE BOTH THE HYPOTHESIS (IF) AND THE CONCLUSION (THEN)


INDUCTIVE REASONING

MAKE A CONCLUSION BASED ON A PATERN OF EXAMPLES OR PAST EVENTS.
EXAMPLE: DARK CLOUDS AND YOU REASON THERE WILL BE A STORM! LOOK AT A PATERN OF NUMBERS TO FIND THE NEXT NUMBER IN A SEQUENCE. 

COPLANAR

POINTS THAT LIE ON THE SAME PLANE AS THE FIRST 3 POINTS


CONJECTURE (CON JEC TURE)

A CONCLUSION OR EDUCATED GUESS
IT IS BASED ON INDUCTIVE REASONING. SOMETIMES CORRECT SOMETIMES NOT. 

POSTULATE 11
HOW TO DETERMINE A LINE 
TWO POINTS DETERMINE A UNIQUE LINE.


LINE

A SEARIES OF AN INFINITE NUMBER OF POINTS THAT EXTENDS WITHOUT END IN BOTH DIRECTIONS.
can be named by a single lower case letter a or by 2 points on the line AB 

POSTULATE 13
THE PLANE 
THREE NONCOLLINEAR POINTS DETERMINE A UNIQUE PLANE.


COUNTEREXAMPLE

WHEN CONJECTURE (EDUCATED GUESS) IS INCORRECT


CONVERSE of a conditional statement

substitute the hypothesis (if)
for the conclusion(then) of a statement. CONDITIONAL: IF A FIGURE IS A TRIANGLE, THEN IT HAS 3 ANGLES ========================= CONVERSE: IF A FIGURE HAS 3 ANGLES, THEN IT IS A TRIANGLE 

POINT

THE BASIC UNIT OF GEOMETRY
IT HAS NO SIZE IT IS NAMED USING CAPITAL LETTERS .A 

POSTULATE 12
INTERSECTING LINES 
IF TWO LINES INTERSECT; THEN
THEIR INTERSECTION IS A POINT. 

ray

definite starting POINT and extends indefinately in the direction of the arrow
A .> THE STARTING POINT IS CALLED THE ENDPOINT IT IS LABELED USING THE ENDPOINT FIRST, THEN ANOTHER POINT ON THE RAY. THE FIRST LETTER TO APPEAR IS THE ENDPOINT EG AB 

PERIMETER

THE DISTANCE AROUND THE outside of a figure
perimeter= length+width=length=width or P=2(l)=2(w) 

POSTULATE (POS TUL ATE)

THE FACTS ABOUT GEOMETRY THAT ARE ACCEPTED AS TRUE.
THE FOUNDATION OF GEOMETRY 

PLANE

FLAT SURFACE EXTENDS IN ALL DIRECTIONS FOR ANY THREE NON
COLLINEAR POINTS. THERE IS ONLY ONE PLANE THAT CONTAINS ALL THREE POINTS 

INVERSE of the conditional

take the conditional then, negate (make negative or opposite) both the hypothesis(if) and the conclusion(then)
CONDITIONAL; if it is raining, then it is cloudy. ===================== INVERSE: if it is not raining, then it is not cloudy 

AREA of a parallelogram

area of parallelogram is the
BASE x height (not side x height)***** **height of parallelogram is determined by right triangle.*** 