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16 Cards in this Set
- Front
- Back
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Acute |
less than 90 degrees |
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Right |
90 degrees |
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Obtuse |
over 90 but less than 180 degrees |
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Straight |
180 degrees |
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Reflex |
greater than 180 but less than 360 |
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Revolution |
360 degrees |
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Adjacent angle |
have a common vertex and a common arm |
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Vertically opposite |
opposite angles that are equal |
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Complementary |
equals to 90 |
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Supplementary |
equals 180 |
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Transversal |
the line going through the parallel lines |
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Parallel lines |
lines that never meet |
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alternative angles |
pairs of alternative angles are equal |
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co-interior |
pairs of co-interior angles be supplementary |
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Corresponding angle |
corresponding angles are opposite |
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supplementary angle |
angles equal to 180 |
