updated 6 years ago by mgort
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an angle that is less than 90 degrees
an angle that is between 90 and 180 degrees
an angle that is exactly 180 degrees
an angle that is exactly 90 degrees
a part of a line that begins at one point and extends forever in one direction.
a set of points that form a straight path. A line extends forever in both directions.
is formed by two rays that share an endpoint or vertex
two angles that add/sum to 90 degrees
two angles that add/sum to 180 degrees
pairs of opposite angles formed by intersecting lines
When 2 shapes are the same size AND the same shape
a figure that can be folded in half so that the two parts match exactly