Across
- 3. Finding the opposite side, and you already know the angle and the adjacent side. What trig identity should you use?
- 5. How many significant figures you should write your answers correct to.
- 6. You want to find an angle in a non-right angled triangle. You know the lengths of all the sides. Which rule should you use?
- 7. If you are getting wrong answers your calculator might not be in this mode.
- 9. Longest side in a right angled triangle.
- 11. You need to find the size of an unknown angle. Which rule should you use if you already know the lengths of 2 sides and the size of 1 angle.
- 14. This direction is on a bearing of 180 degrees.
- 16. The smallest angle in a triangle is opposite to the ____ side.
- 20. Rule to find the area of a triangle if you know the lengths of all 3 sides.
- 22. This side is next to the reference angle in a right angled triangle.
- 23. The number of cm in a m.
Down
- 1. Use this theorem to find sides in a right angled triangle.
- 2. This variable should be on the x-axis.
- 3. Number of sides in a triangle.
- 4. The ______ angle in a triangle is opposite the longest side.
- 8. If you know the length of all three sides in a non-right angled triangle you can use Cosine Rule to find the size of any ______ in the triangle.
- 10. This direction is on a bearing of 090 degrees.
- 11. Use this rule if there are 2 sides and 2 angles involved.
- 12. Bearings are measured clockwise from _______
- 13. The number of m in a km.
- 15. Use this trigonometric identity if you know the hypotenuse and angle, and want to find the adjacent side.
- 17. Area of a triangle = 1/2 x base x ______.
- 18. The angles in this shape add up to 180 degrees.
- 19. Use this on your calculator to help to solve equations.
- 21. The number of mm in a cm.