Across
- 2. An acute triangle is a triangle with all three angles less than 90
- 4. is a triangle with two equal sides.
- 5. the point of concurrency of the perpendicular bisector
- 8. equal
- 9. A straight line at an angle of 90° to a given line
- 10. passes through the midpoint of a side
- 13. is a polygon with exactly four sides.
- 14. a line segment with end points that are a vertex of a triangle
- 16. opposite to the right angle
- 17. the point on a segment
- 18. all three sides unequal.
- 19. the point where two sides of a polygon meet
Down
- 1. point of intersection of concurrent lines
- 3. is a proven fact.
- 6. an angle formed by one side of a triangle
- 7. the point of concurrency of the angle bisectors of a triangle
- 10. side by side
- 11. more lines that intersect at a common point
- 12. A convex polygon is any polygon that is not concave.
- 15. a segment from a vertex of the triangle