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Geometry VocabUnit 1
Honors Geometry
Question | Answer |
---|---|
___ is the set of all points | space |
____ is a location in space that has no size or dimension. It is usually represented by a dot. | point |
A ___ is a series of points that extend in opposite directions without an end. Lines are one dimension. It is usually represented by a straight line with two arrowheads to indicate that the line extends without end in two directions. | line |
A ____ is a flat surface with no thickness. | plane |
______ are points that lie on the same line. | collinear |
____ are points that lie on the same plane. | coplanar |
_____ is a part of a line consisting of two endpoints and all the points between. | segment |
____ is part of a line with one endpoint. | ray |
_____ is two collinear rays with the same endpoint. | opposite rays |
____ are coplanar lines that never intersect. | parallel |
_____ are non-coplanar lines that never intersect. | skew |
_____ are coplanar lines that intersect to form right angles. | perpendicular lines |
____ are planes that do not intersect. | parallel planes |
_____ are two different rays that have the same initial point. | angles |
____ are angles that have the same measure. | congruent angles |
______ is a ray that divides an angle into two congruent angles. | angle bisector |
______ is two angles whose sides form opposite rays. | vertical angles |
______ is two coplanar angles with a common side and vertex, but no common interior points. | adjacent angles |
______ is two angles whose sum is 180. | supplementary |
______ is two angles whose sum is 90. | complementary |
________ is two adjacent angles whose non-common sides form opposite rays. | linear pair |
_____ are rules that are accepted without proof. | postulate |
______ are rules that are proved. | theorems |
_____ is a line that intersects two coplanar lines at two distinct points | transversal |
a(n) ______ angle is less than 90. | acute |
a(n) ______ angle is equal to 90. | right |
a(n) ______ angle is equal to 180. | straight |
a(n) ______ angle is greater than 180. | obtuse |
______ is a point that divides a segment into two congruent segments. | midpoint |
______is a line, segment, or ray that intersects a segment at its midpoint | segment bisector |
___is a line, segment, or ray that is perpendicular to a segment at its midpoint. | perpendicular bisector |