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Geometry Crossword Puzzle

Across
A segment that has endpoints on the circle and that passes through the center of the circle; also the length of that segment
Divides the segment into two congruent segments. Center of segment and endpoint.
An undefined term in geometry; it names a location and has no size
The common endpoint of two or more rays or line segments; corner or a point where lines meet
Pair of adjacent angles whose non common sides are opposite rays. Adjacent angles formed by two intersecting lines.
Two angles whose measure have a sum of 180°. If the two supplementary angles are adjacent, their non-shared sides form a straight line.
A transformation in which a plane figure turns around a fixed center point; a circular movement
Two nonadjacent angles formed by two intersecting lines. The two angles share a vertex.
Lie on opposite sides of the transversal. Also on the outside of the parallel lines.
Triangle with one right angle. used with Pythagorean theorem.
Two lines that meet or cross. The exact place of intersection between two lines is called the "point" or "point of intersection".
Set of all points between the sides of the angle. An angle formed outside a polygon by one side and an extension of an adjacent side.
A triangle with all three angles and sides equal. If all a triangle's angles are equal, they all must measure 60 degrees, adding up to 180 degrees total.
A line, ray or segment that is divided into two congruent segments. it divides the segment into two equal parts at its midpoint.
Statement that is accepted as true without proof. Help describe geometric properties about points, lines, and planes.
Down
A triangle with at least two congruent sides. The angles opposite the equal sides are also equal.
Lie on the same side of the transversal. Also lie on the same side of lines.
Lines that are not coplanar. Two lines that do not intersect and are not parallel.
A triangle with three congruent angles. Also equiangular
A part of a line that starts at an endpoint and extends forever in one direction; possibly through a second point
Lines on the same plane that don't intersect. when they are graphed, they must always be at the same angle.
The side opposite the right triangle in a right triangle. longest side of a triangle.
An undefined term in geometry; it is a flat surface that has no thickness and extends forever.
The difference in the y-values of two points on a line; how far a line goes up
One of the sides of a triangle other than the base or hypotenuse. The legs are the two shorter sides of the triangle.