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Number Quest · Masters (16+)

Trig basics

Name Date

Circle the right answer.

  1. 1.What is sin(30°)?

    0√3/21/21

  2. 2.A right triangle has opposite 6, adjacent 8 and hypotenuse 10. What is tan θ?

    4/34/53/43/5

  3. 3.What is cos(0°)?

    01/21√3/2

  4. 4.What is sin(0°)?

    1/210√3/2

  5. 5.What is cos(60°)?

    √3/21/201

  6. 6.A right triangle has opposite 5, adjacent 12 and hypotenuse 13. What is tan θ?

    12/135/135/1212/5

  7. 7.What is tan(0°)?

    1√3/21/20

  8. 8.A right triangle has opposite 3, adjacent 4 and hypotenuse 5. What is tan θ?

    3/54/54/33/4

  9. 9.What is tan(45°)?

    √3undefined10

  10. 10.A right triangle has opposite 5, adjacent 12 and hypotenuse 13. What is cos θ?

    5/135/1212/1312/5

  11. 11.What is sin(90°)?

    0√3/211/2

  12. 12.A right triangle has opposite 8, adjacent 15 and hypotenuse 17. What is cos θ?

    15/178/1515/88/17

  13. 13.What is cos(90°)?

    1/2√3/210

  14. 14.A right triangle has opposite 8, adjacent 15 and hypotenuse 17. What is tan θ?

    15/1715/88/158/17

  15. 15.A right triangle has opposite 8, adjacent 15 and hypotenuse 17. What is sin θ?

    8/1515/178/1715/8

  16. 16.A right triangle has opposite 3, adjacent 4 and hypotenuse 5. What is cos θ?

    3/44/53/54/3

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Answers · Trig basics

  1. 1. 1/2
  2. 2. 3/4
  3. 3. 1
  4. 4. 0
  5. 5. 1/2
  6. 6. 5/12
  7. 7. 0
  8. 8. 3/4
  9. 9. 1
  10. 10. 12/13
  11. 11. 1
  12. 12. 15/17
  13. 13. 0
  14. 14. 8/15
  15. 15. 8/17
  16. 16. 4/5