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What is 1 + 3?
Riley Math B Geometry
part of a line with two endpoints
a line segment that has no end points
a part of a line with one endpoint and one side goes on forever.
lines in the same plane that never intersect
two lines intersecting at or forming right angles
a pair of opposite congruent angles formed by intersecting lines
are a pair of angles with a common vertex and a common side, but no common interior points
two angles whose sum is 90 degrees
two angles whose sum is 180 degrees