2. Jeopardy Rt. Tri. Trig Non-Rt. Tri Trig Line StuffRandom More Triangles Q $100 Q $200 Q $300 Q $400 Q $500 Q $100 Q $200 Q $300 Q $400 Q $500 Final Jeopardy

3. $100 Question from Rt. Tri. Trig. Cosine = ?

4. $100 Answer from Rt. Tri. Trig

5. $200 Question from Rt. Tri. Trig Set up a trig equation to find x

6. $200 Answer from Rt. Tri. Trig

7. $300 Question from Rt. Tri. Trig Find to one decimal place the angle marked

8. $300 Answer from Rt. Tri. Trig 29.1 degrees

9. $400 Question from Rt. Tri. Trig The angle of depression from the top of a 150 m high cliff to a boat at sea is 7. How much closer to the cliff must the boat move for the angle of depression to become 19

10. $400 Answer from Rt. Tri. Trig 786 meters

11. $500 Question from Rt. Tri. Trig Why is it that doesn’t work?

12. $500 Answer from Rt. Tri. Trig Because there is no angle whose cosine is greater than 1 or less than -1. (The basic cosine (and sine) curve max out at 1 and -1.

13. $100 Question from non-Rt. Tri. Trig What method should be used to find the length of AC?

14. $100 Answer from non-Rt. Tri. Trig The Sine Rule: you have an angle and its opposite side, and another angle with the opposite side missing.

15. $200 Question from non-Rt. Tri. Trig For what 2 situations do you use The Cosine Rule?

16. $200 Answer from non-Rt. Tri. Trig When looking for an angle and you have all three sides * When looking for a missing side and you have two sides and the included angle.

17. $300 Question from non-Rt. Tri. Trig Find the measure of angle C:

18. $300 Answer from non-Rt. Tri. Trig

19. $400 Question from non-Rt. Tri. Trig Find the remaining side:

20. $400 Answer from non-Rt. Tri. Trig 28.8 cm

21. $500 Question from non-Rt. Tri. Trig The angles of elevation to the top of a mountain are measured from two beacons A and B, at sea. These angles are shown in the diagram. If the beacons are 1473 m apart, how high is the mountain?

22. $500 Answer from non-Rt. Tri. Trig 2411 meters high

23. $100 Question from Line Stuff How do you know if two lines are parallel vs. perpendicular?

24. $100 Answer from Line Stuff Parallel lines share the same gradient. Perpendicular lines have gradients that are the opposite reciprocals of each other.

25. $200 Question from Line Stuff Find the gradient between (3,5) and (1,6)

26. $200 Answer from Line Stuff -1/2

27. $300 Question from Line Stuff Find the distance between (3,-2) and (-1,-4)

28. $300 Answer from Line Stuff

29. $400 Question from Line Stuff Find in “gradient-intercept” form the equation of a line that passes through (-1,3) with a gradient of 5.

30. $400 Answer from Line Stuff Y=5x+8

31. $500 Question from Line Stuff State the equation of the line that is perpendicular to 2x-7y=5 and that goes through (4,2). Give answer in Ax + By = C form.

32. $500 Answer from Line Stuff 7x+2y=32

33. $100 Question from Random What is the area formula for triangles that you need to know?

34. $100 Answer from Random

35. $200 Question from Random Where is the hypotenuse of a triangle?

36. $200 Answer from Random The hypotenuse is always across from the right angle.

37. $300 Question from Random Solve as if you were solving for angle A.

38. $300 Answer from Random

39. $400 Question from Random Shade the area for

40. $400 Answer from Random

41. $500 Question from Random The height h (in meters) of a rocket t seconds after it is fired is given by What is the max height of the rocket and how long does it take to get there?

42. $500 Answer from Random At 8 seconds the rocket reaches a height of 320 meters.

43. $100 Question from more triangles To find side BC, the following work was done…determine if it is correct, if not why?

44. $100 Answer from more triangles No since its not a right Triangle, Sine, cosine & tangent, can’t be used…Use the “Sine Rule” instead

45. $200 Question from more triangles If you know that all sides of this cube are 6cm, what’s the first measure you need to find (and how) in order to determine the length of diagonal AG?

46. $200 Answer from more triangles Determine the length of EG. It is the Diagonal of the base- use Pythagorean Theorem

47. $300 Question from more triangles Now determine the length of AG to 3 sig. figs., if all sides of cube are 6 cm.

48. $300 Answer from more triangles 10.4 cm

49. $400 Question from more triangles A symmetric, square based pyramid has base lengths of 6cm and height of 8 cm as shown. Find the measure of angle TNM.

50. $400 Answer from more triangles

51. $500 Question from more random Determine the measure of angle TRM

52. $500 Answer from more random

53. Final Jeopardy

54. Final Jeopardy Answer 26.6 square meters.