Geometry Vocabulary with pictures 8-1 to 8-3
Terms in this set (25)
A straight path that goes without end in two directions.
lines in the same plane that never intersect
lines that meet or cross at a point
Lines that intersect to form right angles and measure 90.
A part of a line with two endpoints
A part of a line, with one endpoint, that continues without end in one direction
90 degree angle that makes a square corner
an angle that measures less than 90 degrees (less than a right angle)
An angle that measures more than 90 degrees but less than 180 degrees (more than a right angle but less than a straight angle
an angle that measures 180 degrees (forms a straight line)
A point at one end of a segment or the starting point of a ray.
The point where two lines meet
Having the same size and shape
Two angles that add up to 90 degrees
Two angles whose sum is 180 degrees
lines that do not intersect and are not parallel, they exist in different planes
2 angles that have a common vertex and a common side
2 angles opposite one another when the lines intersect.
a line that intersects two or more parallel lines.
2 angles that are on the same side of the traversal and are both above or below the parallel lines
alternate interior angles
angles located inside the parallel lines on opposite sides of the traversal.
alternate exterior angles
angles located outside the parallel lines on the opposite sides of the traversal.
the common endpoint of an angle
an exact location usually represented by a dot.
a perfectly flat surface extending infinitely in all directions.
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