Geometry words

6. To have the same shape and size.
7. A flat surface or area that extends infinitely in two dimensions and has no thickness.
9. A figure which is formed by two rays or lines that shares a common endpoint
10. A one dimensional figure, which has length but no width.
12. A point where two straight lines or rays meet.
13. A three-sided polygon that consists of three edges and three vertices.
14. A quadrilateral with two pairs of parallel sides.

1. The branch of mathematics that deals with shapes, angles, dimensions and sizes of a variety of things we see in everyday life.
2. A particular type of line segment joining two vertices in a polygon, polyhedron, or higher-dimensional polytope.
3. The total space taken up by a flat surface or shape of an object.
4. An angle equal to 180 degrees.
5. A regular quadrilateral, which has all the four sides of equal length and all four angles are also equal.
7. A math concept that measures the total length around the outside of a shape.
8. A side of a polygon or a face of a polyhedron, particularly one oriented perpendicular to the direction in which height is measured, or on what is considered to be the "bottom" of the figure.
11. A straight line that makes the right angle (90 degrees) with the other line.