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30 Cards in this Set
- Front
- Back
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Inductive reasoning |
reaching a conclusion based on a pattern of past events |
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conjecture |
conclusion through inductive reasoning |
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counterexample |
proves conjecture wrong |
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deductie reasoning |
conclusion reached by facts laws logic ect |
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theorem |
conclusion reached by deductive reasoning |
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point |
basic unit of geometry |
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line |
a series of points that extend |
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collinear |
3 or more points in the same line |
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noncollinear |
three or more points that do not lie on the same line |
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rays |
line that has a definite oint and it keeps going |
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segments |
has a definite start and end |
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plane |
a flat surface that extends without end in two directions |
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coplanar |
points or lines in the same plane |
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noncoplanar |
points or lines that are not on the same plane |
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postulates 1-1 |
two points determine a unique line |
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postulate 1-2 |
the place where two lines intersect is a point |
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postulate 1-3 |
three noncollinear points determine a unique plane |
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conditional statement |
a statement that has an action which depends on the truth of some condition or an action result if some condition is true |
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If-then form |
if (hypothesis), then (conclusio) |
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All- are Every- is |
All (hypothesis), are (conclusion) Every (hypothesis), is (conclusion) |
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Declaration |
(conclusion) if (hypothesis) |
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The converse |
if (conclusion), then (hypothesis) |
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the inverse |
IF NOT hypothesis, THEN NOT conclusion |
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The contrapositive |
IF NOT conclusion, THEN NOT hypothesis |
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straightedge |
an object with a straight edge that is udes to draw a straighline and to check if the line is straight |
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the compass |
used to draw arcs and circles and to compare the lengths of segments |
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construction |
a figure drawn using only a straightedge ad a compass |
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midpoint |
the middle point of a line |
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perimeter |
the distance around a figure P of reg.= 2l + 2w |
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area |
the # of square units or tiles needed to go over a surface A of Reg = b x h |
