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16 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Perpendicular lines... |
when they meet they form right angles. |
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Transversal |
A line that intersects two (or more) other lines at distinct points; all of the lines lie in the same plane. |
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Interior Angle |
The angle between adjacent sides of a rectlinear figure. |
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Exterior Angle |
The angle between a side of a rectilinear figure and an adjacent side extended outward. |
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Corr. Angles |
Two angles that lie in the same relative positions. |
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Alt. Int. Angle |
Two interior angles that have different vertices and lie on opposite sides of a trans. |
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Alt. Ext. Angles |
Two angles that have different vertices and lie on opposite sides of the trans. |
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What is a conditional statement? |
If P, then Q. |
Implication |
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What is a converse of conditional statement? |
If Q, then P. |
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What is an inverse of a conditional statement? |
If ~P, then ~Q. |
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Contrapositive of a conditional statement? |
If ~Q, then ~P. |
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If P, then Q is equivalent to... |
If ~Q, then ~P. |
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The Law of Negative Interference |
1) If P, then Q. 2) ~Q → ~P |
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Indirect Proof |
The method of proof characterized by the law of negative interference. |
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Triangle |
Is the union of three line sgements that are determined by three noncollinear points. |
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Vertex |
A meeting point of two lines that form an angle. |
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