Geometry Crossword Puzzle

a line with an endpoint that extends infinitely in one direction.
is a flat, two-dimensional surface that extends infinitely far.
extends infinitely in two directions.
a true statement that can be proven.
educated guess that is bases on known information.
Negating both the hypothesis and conclusion of a conditional statement.
they have a common side and a common vertex
intersecting a system of lines.
An angle that measures less than ninety degrees but more than zero degrees.
a triangle is a line segment through a vertex and perpendicular to a line containing the base
a point of concurrency of the triangle.
is a line segment joining a vertex to the midpoint of the opposing side.
is the quantity that expresses the extent of a two-dimensional figure or shape, or planar lamina, in the plane.
The distance from the center of a regular polygon to the midpoint of a side.
a nine-sided polygon or 9-gon.
a closed curve or circular object is the linear distance around its edge.
the middle point of a line segment.
the length of the outline of a shape.
When two lines are crossed by another line.
When two lines are crossed by another line.