Across
- 2. 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.
- 4. a closed 2-D shape, having 4 sides, 4 corners, and 4 right angles (90°
- 7. the point where the triangle's three perpendicular bisectors intersect.
- 9. a line that bisects another line segment at a right angle, through the intersection point.
- 13. special type of quadrilateral that has both pairs of opposite sides parallel and equal.
- 16. a line segment joining a vertex of the triangle to the midpoint of the opposite side
- 18. a point which is at the same or equal distance from two given points.
Down
- 1. having all or corresponding angles equal.
- 3. a four-sided regular polygon which is also known as a quadrilateral with four equal sides.
- 5. The point where the three medians of a triangle intersect
- 6. the point where all three altitudes of the triangle intersect.
- 8. a quadrilateral with reflection symmetry across a diagonal
- 10. having all its sides of the same length.
- 11. a line that goes in a sloping direction.
- 12. a flat closed shape having 4 straight sides, with one pair of parallel sides.
- 14. a quadrilateral with four equal sides. Its opposite sides are parallel, and opposite angles are equal.
- 15. a line that splits an angle into two equal angles
- 17. the point where three bisectors of the interior angles of a triangle intersect and it is the center of the inscribed circle.