1						2					3		4		5				6
																		7
				8
										9						10
11		12
													13
		14		15
																				16
															17	18
19
												20
				21
		22				23			24
									25
26									27
28
								29

Across 1. the angle measured from the horizontal downwards 8. angles that add to 90 degrees 10. a triangle with all angles less than 90 degrees 12. the positive acute angle made by the terminal side of the angle and the x-axis 13. adjacent over hypotenuse 15. the digits obtained by actual measurement 17. same shape triangles that may not be the same size 19. a line that crosses parallel lines 20. start with a north-south line and use an acute angle to show the east or west direction from the line 22. the angle measured from the ground up 25. lines with same slope 26. a triangle with one 90 degree angle 27. portion of a line with two endpoints 28. hypotenuse over opposite 29. opposite angles formed by intersecting lines

Down 2. angles that add to 180 degrees 3. opposite over hypotenuse 4. a number that represents the reseult of counting or from theoretical work 5. a portion of a line that starts at one points and continues through another point 6. formed by rotating a ray around its endpoint 7. a triangle with one angle greater than 90 degrees 9. the final position side when rotating a ray 11. the trigonometric function of the complement of an angle 13. triangles with the same size and shape 14. adjacent over opposite 16. opposite over adjacent 18. the starting position side when rotating a ray 21. hypotenuse over adjacent 23. the non-hypotenuse side next to the angle 24. the side across from the angle