Level 1
a location, denoted by a point and named by a capital letter
point
same size same shape
congruent
a point that is exactly half-way between two points called endpoints
fractional distance
a pair of adjacent, supplementary angles formed by the intersection of two lines
linear pairs
interior angles that are located on opposite sides of the transversal
alternate interior angles
angles located on the same side of the transversal, attaining the same position, where one is on the interior and the other in on the exterior
corresponding angles
to cut exactly in half
bisect
interior angles that are located on the same side of the transversal
same side interior angles
a pair of non-adjacent angles formed by the intersection of two lines
vertical angles
a portion of a line with one endpoint and then extends infinitely in one direction
ray
an angle that measures more than 90 degrees
obtuse
the fraction form of a number flipped upside down and with its' sign changed
opposite reciprocal
two lines on the same plane that intersect and form a right angle
perpendicular
a point that is exactly half-way between two points called endpoints
midpoint
right angle
two lines on the same plane that never meet
parallel
two angles that SUM to 180 degrees
supplementary
equally far apart from a specific point
equidistant
an angle that measures less than 90 degrees
acute
a point that is equally far away from a midpoint as another endpoint
endpoint
two angles that share a side
adjacent angles
a line that intersects two or more coplanar lines
transversal
an angle that measures exactly 180
straight angle
exterior angles that are located on opposite sides of the transversal
alternate exterior
a portion of line with two endpoints named by two endpoints
segment