Geometry

2. - a quadrilateral with four equal sides and four right angles
4. - intersecting at or forming a right angle
5. a straight path that extends infinitely in both directions
7. - a quadrilateral with opposite sides parallel and equal in length
8. - a quadrilateral with four right angles
9. - a quadrilateral with only one pair of opposite sides parallel
10. Theorem - a formula that states that the sum of the squares of the two shorter sides of a right triangle is equal to the square of the hypotenuse.
11. a part of a line that has one endpoint and extends infinitely in one direction
13. - having the same shape and size

1. - a four-sided polygon
3. a plane figure with three straight sides and three angles
6. a round plane figure whose boundary consists of points equidistant from a fixed point
8. - a quadrilateral with all sides equal in length
12. a location in a space that has no size or shape