Across
- 6. an angle, whose vertex point has a value of 180 degrees
- 7. passes through two lines in the same plane at two distinct point
- 10. a point that divides the line segment into two equal halves
- 11. an angle which is greater than 90° and less than 180
- 13. two lines that do not intersect and are not parallel
- 16. studying measure of triangles
- 17. all three sides have the same length, and all three angles are equal
- 19. an angle that is more than zero degrees, but less than 90 degrees
- 22. a triangle in which all three sides are in different lengths, and all three angles are of different measures
- 23. same shape different size
- 24. a set of points obeying a linear relationship
- 25. a flat space extending in all directions
- 29. straight line that is bounded by two distinct endpoints
- 30. any two angles whose measures sum to 180 degrees
Down
- 1. something that is lying on or passing through the same line
- 2. cutting into two equal parts
- 3. have the same shape and size
- 4. a pair of adjacent, supplementary angles
- 5. that has two sides of equal length and two angles of equal measure
- 8. a single spot on a plane
- 9. an angle of exactly 90 degrees
- 12. which two sides are perpendicular, forming a right angle
- 14. two straight lines joined to a common point making a 90 ∘ angle with each other
- 15. a line with a single endpoint (or point of origin) that extends infinitely in one direction
- 18. triangle with three acute angles
- 20. lines that exist on the same plane and can interact and cross each other
- 21. a figure which is formed by two rays or lines that shares a common endpoint
- 26. two angles whose sum is 90 degrees
- 27. angles opposite each other where two lines cross.
- 28. coplanar infinite straight lines that do not intersect at any point