Math

2. the point where three bisectors of the interior angles of a triangle intersect
8. having all its sides of the same length.
11. at equal distances
13. joining two opposite corners of a square, rectangle, or other straight-sided shape.
14. the middle value in a set of data
15. divides the opposite side into two parts proportional to the other two sides of the triangle.
17. a quadrilateral whose four sides can be grouped into two pairs of equal-length sides that are adjacent to each other.
18. a special case of a parallelogram

1. having equal angles.
3. a line that bisects another line segment at a right angle, through the intersection point.
4. opposite sides are parallel.
5. the point where the perpendicular drawn from the vertices to the opposite sides of the triangle intersect each other
6. he arithmetic mean position of all the points in the surface of the figure.
7. a line that passes through two very specific points on a triangle: a vertex, or corner of a triangle, and its opposite side at a right, or 90-degree, angle
9. a plane figure with four straight sides and four right angles, especially one with unequal adjacent sides, in contrast to a square.
10. the point at which the three perpendicular bisectors of the sides of a triangle intersect and which is the same distance from each of the three vertices of the triangle
12. a quadrilateral with only one pair of parallel sides.
16. plane figure with four equal straight sides and four right angles.