Data

Copy and paste the text below. It is read-only. Select All

line segment part of a line with two endpoints line a line segment that has no end points ray a part of a line with one endpoint and one side goes on forever. parallel lines lines in the same plane that never intersect perpendicular lines two lines intersecting at or forming right angles vertical angles a pair of opposite congruent angles formed by intersecting lines adjacent angles are a pair of angles with a common vertex and a common side, but no common interior points complementary angles two angles whose sum is 90 degrees supplementary angles two angles whose sum is 180 degrees