Geometry Final
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Created by:
tfrederick on April 24, 2009
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Description:
Words for vocabulary final
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43 terms
Terms | Definitions |
|---|---|
 linear pair | two angles that are both adjacent and supplementary |
| conclusion | "then" part of a conditional statement |
| trapezoid | quadrilateral with exactly one pair of opposite sides parallel |
| decagon | 10 sided polygon |
| inscribed | polygon whose vertices lie on the circle |
| octagon | 8 sided polygon |
| perpendicular | two lines that meet to form right angles |
| theorem | statement that must be proven true |
| quadrilateral | 4 sided polygon |
| angle bisector | segment that divides an angle into two congruent segments |
| rhombus | parallelogram with four congruent sides |
| postulate | statement assumed to be true |
| congruent | two polygons having the same shape and size |
| slope | ratio of rise over run |
| isosceles | triangle with two congruent sides |
| square | rectangle with four congruent sides |
| IFF | if and only if |
| median | segment from any vertex of a triangle to the midpoint of the opposite side |
| pentagon | 5 sided polygon |
| rectangle | parallelogram with four right angles |
| parallelogram | quadrilateral with both pairs of opposite sides parallel |
| altitude | segment from the vertex of a triangle perpendicular to the line containing the opposite side |
| hypotenuse | longest side in a right triangle |
| coplanar | points that lie in the same plane |
| scalene | triangle with no congruent sides |
| obtuse | angle measure between 90 and 180 |
| equilateral | triangle with all sides congruent |
| right | triangle containing one right angle |
| collinear | points that lie on the same line |
| CPCTC | corresponding parts of congruent triangles are congruent |
| similar | two polygons having the same shape |
| triangle | 3 sided polygon |
| circumscribed | each side of a polygon is tangent to the circle |
| parallel | lines that lie in the same plane and do not intersect |
| tangent | a line that intersects a circle at exactly one point |
| diagonal | a segment joining two nonconsecutive vertices |
| hypothesis | the "if" part of a conditional statement |
| leg | sides of a right triangle |
| midpoint | a point in the middle of two points |
| adjacent | angles that have a common side and vertex |
| Supplementary | Angles that add to 180 |
| complementary | angles that add to 90 |
| acute | angle measure between 0 and 90 |
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