Across
- 5. an angle measuring exactly 180 degrees
- 6. a triangle in which one of the angle is a right angle (90 degrees)
- 10. an angle measuring greater than 0 degrees, but less than 90 degrees
- 11. an angle measuring exactly 90 degrees
- 12. three equal sides and therefore has three equal angles (60 degrees)
- 14. is an angle that has its vertex at the center of a circle
- 15. part of a line that has a fixed starting point
- 18. the ray in its original position
- 19. two angles in standard position with the same terminal side
- 21. the longest side of the right side
- 22. the portion of the line between the two points (including the points)
- 23. the sum of the measures of two positive angles is 180 degrees
- 25. stems from the Greek words trigonon, which means "triangle" and metrein, which means "to measure"
- 26. triangles with equal corresponding angle measures
- 28. two lines intersecting each other at 90 degrees
- 29. a statement that is true for all values of the variable
- 30. if its initial is along the positive x-axis and its vertex is at the origin
Down
- 1. triangles with equal corresponding angle measures and corresponding equal side lengths
- 2. the ray after it is rotated
- 3. the angle formed by one side of a polygon and the extension of the adjacent side
- 4. an angle measuring greater than 90 degrees, but less than 180 degrees
- 7. angles in standard position with terminal sides along the x-axis or y-axis
- 8. the inner of two angles formed where two sides of a polygon come together
- 9. the other two sides
- 13. when a ray is rotated around its endpoint
- 16. the straight path connecting two points (A and B) and extending beyond the points in both directions
- 17. is the portion of the line that starts at one point (A) and extends to infinity (beyond B)
- 20. the sum of the measures of two positive angles is 90 degrees
- 24. angles of equal measure that are opposite one another and share the same vertex
- 27. a line that intersects two other coplanar lines