Trigonometry--Vocabulary
Across
- 2. Special Case—Half of a square.
- 4. A = √S(S - a)(S - b)(S - c) with S = (a + b + c)/2
- 6. A triangle that contains a 90 degree angle.
- 9. The side opposite the right angle and also the longest side.
- 10. a² + b² =c²
- 11. Special Case—Half of an equilateral triangle.
- 12. The acute angle a line makes with a horizontal line, when measured above the horizontal.
- 15. The inverse of the trigonometric functions.
- 18. If two sides and an angle opposite one of them is given, three possibilities can occur in oblique triangles.
- 19. The three trigonometric functions of a right triangle, with an acute angle θ, are defined by ratios of two sides of the triangle.
- 25. a/sinA = b/sinB = c/sinC
- 26. The acute angle a line makes with a horizontal line, when measured below the horizontal.
- 27. H/A
- 28. A/H
Down
- 1. Trigonometry that applies only to right triangles.
- 3. Area= 1/2(b)(h)
- 5. A/O
- 7. a² = b² + c² - 2(b)(c)(cosA)
- 8. The term for the sides of a triangle.
- 13. The type of problems that concerns an observer looking at an object.
- 14. O/H
- 16. O/A
- 17. The ratios of corresponding sides, heights, and measures of angles are equal.
- 20. Triangles that have the same shape and the same size.
- 21. A triangle that has no right angles.
- 22. The side next to the angle we are solving for.
- 23. A term that comes from two Greek words meaning "measurement of triangles".
- 24. The side opposite to the angle we are solving for.
- 28. H/O