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8 Cards in this Set
- Front
- Back
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parallel lines
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coplanar lines that do not intersect
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skew lines
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non coplanar (diff. plane) lines that do not intersect
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perpendicular lines
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lines that intersect to form 4 right angles
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perpendicuar bisector
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a line/ray that divides a segment into congruent segments and forms right angles
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midpoint formula
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the midpoint of (x,y) + (x2, y2) is (x1+x2 ÷2,y1+y2÷2)
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slope
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the steepness of a line m= rise over run
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opposites
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# the same distance from 0 on the same # line
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reciprocals
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a/b,b/a a/b×b/a=1
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