Properties of Lines and Angles
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Indicates a location. It has no size. Name it by a capital letter. | Point
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| It's a series of points that extend in two opposite directions without end. Name it by any two points or by a lowercase letter. | Line
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| Part of a line with two endpoints and all the points in between. Name it by its endpoints | Segment
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| Lines that have exactly one point in common. | Intersecting
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| Lines that never intersect. | Parallel
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| Lines that intersect to form a 90 degree angle. | Perpendicular
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| Between 0 and 90 degrees | Acute
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| 90 degrees | Right
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| Between 90 and 180 degrees | Obtuse
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| 180 degrees | Straight
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| Names of angles spell | SOAR
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| What angles are two angles whose sum is 180 degrees. | Supplementary
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| What angles are two angles whose sum is 90 degrees. | Complementary
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| What angles are angles that share a common vertex and side. | Adjacent
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| _________ angles are formed by two intersecting lines. They are ____________ each other. The measures of vertical angles are __________________________. | Vertical, opposite, the same or congruent.
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Created by:
IsabelleC
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