Basic of Geometry Crossword

part of a line extending from one endpoint
points that all share one straight line
angle measuring more than 90 degrees
angles that sum up to 180 degrees
lines in a plane that never intersect
having equal measure
lines that are non-coplanar and never intersect
angle pair whose sum is 90 degrees
splits a segment into equal halves
angle measuring exactly 90 degrees
set of all points extending infinitely in both directions
angle measuring less than 90 degrees
angles that are congruent and opposite one another in an x-shape
part of a line between two endpoints
where two lines will always intersect
angles that are side by side
a two-dimensional flat surface
angle that measures 180 degrees