Geometry Crossword

_____ angles form two coplanar angles with a common side, a common vertex, and no common interior points.
Cuts into two congruent parts.
The point of concurrency of the medians in a triangle.
_____ angles are two angles whose measures have a sum of 90.
Has at least one diagonal with points outside the polygon.
Where three or more lines intersect in one point.
Switches the hypothesis and conclusion and negates both.
Has no diagonal with points outside the polygon.
A polygon that has 12 sides.
_____ triangle has all angles congruent.
Equal distance.
_____ triangle has all sides congruent.
Negates the hypothesis and conclusion.
_____ triangle has at least two sides congruent.
_____ triangle has no sides congruent.
A parallelogram with four congruent sides and four congruent angles.
_____ angles are two angles whose measures have a sum of 180.
A quadrilateral with exactly one pair of parallel sides.
A polygon that has 11 sides.
_____ angles are angles whose sides form two pairs of opposite rays.