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6 terms

math chapter 1 vocab and formulas

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construction
a geometric drawing that uses a limited set of tools (compass and straight edge)
line
extends in one dimension (has lenght); usually represented by a line with arrows at each end; always straight
linear pair
two adjacent angles whose noncommon sides are opposite rays
vertical angles
A pair of opposite congruent angles formed by intersecting lines., two angles whose sides form two pairs of opposite rays
postulate
something accepted as true without proof; an axiom
straight angles
measures exactly 180 degrees and forms a straight line