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Bingo: 11th grade trigonometry

Cut out the cards. The caller reads a question; if your card has the answer, cover it. Four in a row wins.

BINGO

PositiveZero2π7π/4π/288−√3/280330−1/21/227011π/6√3/2−√2/260

BINGO

1/27π/4−√3/2330−√2/25π/660−1/2223.5ZeroPositive√3/288108.9225π/6

BINGO

13588−1/22ππ/6330223.5π/21/211π/6Zero23Negative108.9−√2/27π/4

BINGO

60225223.51/2Zero−√2/211π/623108.9270Negative√3/2−√3/2π/27π/45π/6

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Caller's list: 11th grade trigonometry

Read the questions in any order. Tick each one as you call it.

  1. ☐ What is the reference angle for 280°? (80)
  2. ☐ θ is in the first quadrant. Is cos θ positive or negative? (Positive)
  3. ☐ Without a calculator, is cos 259° positive or negative? (Negative)
  4. ☐ Find the exact value of sin 315°. (−√2/2)
  5. ☐ Write 330° in radians, as a multiple of π. (11π/6)
  6. ☐ Find the exact value of sin 120°. (√3/2)
  7. ☐ What is the reference angle for 268°? (88)
  8. ☐ Convert 3π/4 radians to degrees. (135)
  9. ☐ Find the exact value of sin 210°. (−1/2)
  10. ☐ Write 30° in radians, as a multiple of π. (π/6)
  11. ☐ Write 315° in radians, as a multiple of π. (7π/4)
  12. ☐ Convert 150° to radians (in terms of π). (5π/6)
  13. ☐ Convert π/3 radians to degrees. (60)
  14. ☐ Convert 3.9 radians to degrees, to 1 decimal place. (223.5)
  15. ☐ Convert 360° to radians (in terms of π). (2π)
  16. ☐ Find the exact value of sin 300°. (−√3/2)
  17. ☐ Convert 1.9 radians to degrees, to 1 decimal place. (108.9)
  18. ☐ Is cos 90° positive, zero or negative? (Zero)
  19. ☐ Write 90° in radians, as a multiple of π. (π/2)
  20. ☐ Convert 3π/2 radians to degrees. (270)
  21. ☐ What is the reference angle for 203°? (23)
  22. ☐ Convert 11π/6 radians to degrees. (330)
  23. ☐ Convert 5π/4 radians to degrees. (225)
  24. ☐ Find the exact value of sin 150°. (1/2)

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