Geometry

3. a polygon with 5 sides and 5 angles
8. A triangle with one internal angle equal to 90 degrees.
10. A segment that joins the midpoints of two sides of a triangle.
11. A postition in space.
13. A line, segment, or ray that divides a segment into two equal parts and is perpendicular.
15. the line segment between 2 points on a given curve.

1. the point at which the 3 altitudes intersect in a triangle.
2. The point at which the 3 angle bisectors intersect in a triangle.
4. A shape with four sides of equal length
5. The point at which the three perpendicular bisectors intersect in a triangle.
6. A line, segment, or ray that divides an angle into two equal parts.
7. A segment that connects a vertex of a triangle to the opposite side so that it is perpendicular.
9. A segment that connects a vertex of a triangle to the midpoint of the opposite side.
12. the intersection point of two sides of a plane figure.
14. the point at which the three angle bisectors intersect in a triangle.