Across
- 3. a quadrilateral with two pairs of parallel sides
- 5. is a triangle that has all three sides equal to each other along with all three angles measured the same at 60°
- 8. is the point where all the three altitudes of the triangle cut or intersect each other.
- 9. a quadrilateral whose four sides can be grouped into two pairs of equal-length sides that are adjacent to each other
- 11. means being the same or equal distance
- 12. Is the arithmetic mean position of all the points in the surface of the figure.
- 14. the single point in which the three bisectors of the interior angles of a triangle intersect and which is the center of the inscribed circle.
- 15. a ray that divides an angle into two equal parts
- 16. 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.
- 17. 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
Down
- 1. a type of quadrilateral, whose opposite sides are equal and parallel
- 2. a triangle whose all three sides are of equal length
- 3. a line that bisects another line segment at a right angle, through the intersection point
- 4. a plane figure with four equal sides and four right (90°) angles
- 6. a quadrilateral with both pairs of opposite sides parallel and all sides the same length
- 7. The middle number
- 10. a flat closed shape having 4 straight sides, with one pair of parallel sides
- 13. is a line that connects two vertices of a polygon or a solid, whose vertices are not on the same edge.