Geometry Vocab

4. a four-sided shape where all four sides are equal in length, making it an equilateral parallelogram with opposite sides parallel and opposite angles equal
6. a four-sided flat shape where all four interior angles are right angles (90°), and its opposite sides are parallel and equal in length
8. a line segment from a vertex of a polygon that is perpendicular to the opposite side
12. the geometric center or the average location of all points in a shape
14. the point where all three perpendicular bisectors of a triangle meet
15. the point where the three altitudes of a triangle intersect
17. a line, ray, or line segment that divides a given angle into two smaller congruent angles
18. a four-sided polygon with at least one pair of parallel sides

1. a line, ray, or segment that intersects another line segment at its midpoint, forming a right angle
2. any polygon with all sides of equal length
3. a four-sided shape where both pairs of opposite sides are parallel and equal in length, and opposite angles are equal
5. a regular, four-sided shape with all four sides of equal length and all four interior angles measuring 90 degrees
7. a quadrilateral with two distinct pairs of equal-length, adjacent sides
9. being the same distance from two or more points or objects
10. a line segment in a triangle that connects a vertex to the midpoint of the side opposite that vertex
11. the unique point where the three internal angle bisectors intersect
13. a line segment that connects two non-adjacent corners of a polygon or polyhedron
16. a polygon where all interior angles have the same measure