Unit 5/8 Test

23 Questions | Total Attempts: 118

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Unit 5/8 Test

Questions and Answers
  • 1. 
    A) Write three (3) personal individual goals. Be specific. B) What kind of classwork activity would you like or what kind of group activity would you suggest for next six weeks?
  • 2. 
    In the following triangle, what is sin A = ?
    • A. 

      5/12

    • B. 

      12/5

    • C. 

      5/13

    • D. 

      12/13

  • 3. 
    Which equation would best help solve for x?
    • A. 

      Sin 25 = x/48

    • B. 

      Cos 25 = x/48

    • C. 

      Tan 25 = x/48

    • D. 

      Tan 25 = 48/x

  • 4. 
    In a right angle triangle ABC, AB = 12 m, angle ABC = 90 degrees and angle BAC = 60 degrees. The length of side AC is
    • A. 

      6 cm

    • B. 

      24 cm

    • C. 

      10.4 cm

    • D. 

      16.5 cm

  • 5. 
    One end of  a piece of wire 14 m long is attached to the top of a vertical pole and the other end is attached to the ground at an angle of 70 degrees to the ground.  What is the height of the pole?
    • A. 

      4.8 m

    • B. 

      14.9 cm

    • C. 

      13.2 m

    • D. 

      38.5 m

  • 6. 
    Find the unknown side length.  Round answer to the nearest hundredth if necessary.
    • A. 

      11.70 m

    • B. 

      137 m

    • C. 

      105 m

    • D. 

      10.25 m

  • 7. 
    If a = 7 and c = 25, b = ?
    • A. 

      18

    • B. 

      24

    • C. 

      26

    • D. 

      32

  • 8. 
    If  b = 15 and c = 24, a = ?   (Round answer to the tenth)
    • A. 

      28.3

    • B. 

      18.7

    • C. 

      9

    • D. 

      39

  • 9. 
    A triangle with sides length of 16, 30, and 34 units is a right triangle.
    • A. 

      True

    • B. 

      False

  • 10. 
    A triangle with sides length of 7, 24, and 25 units is a right triangle.
    • A. 

      True

    • B. 

      False

  • 11. 
    Find x.
    • A. 

      2

    • B. 

      4

    • C. 

      Cannot be determined from information.

  • 12. 
    Find x.
    • A. 

      7 * sqrt(3)

    • B. 

      7

    • C. 

      7 * sqrt(2)

  • 13. 
    What is the definition of "sine"?
    • A. 

      Opposite/Adjacent

    • B. 

      Hypotenuse/Adjacent

    • C. 

      Opposite/Hypotenuse

    • D. 

      Adjacent/Opposite

  • 14. 
    What is the definition of "cosine"?
    • A. 

      Hypotenuse/Adjacent

    • B. 

      Adjacent/Opposite

    • C. 

      Hypotenuse/opposite

    • D. 

      Adjacent/Hypotenuse

  • 15. 
    What is the definition of  "tangent"?
    • A. 

      Adjacent/Hypotenuse

    • B. 

      Hypotenuse/opposite

    • C. 

      Opposite/Adjacent

    • D. 

      Adjacent/Opposite

  • 16. 
    From the top of a lighthouse 210 feet high, the angle of depression of a boat is 27°. Find the distance from the boat to the foot of the lighthouse. The lighthouse was built at sea level. 
    • A. 

      107 ft

    • B. 

      207 ft

    • C. 

      187 ft

    • D. 

      210 ft

  • 17. 
    Evaluate x if tan x = 2.45(answer correct to 1 decimal place)
    • A. 

      67.8°

    • B. 

      67.7°

    • C. 

      1.2°

    • D. 

      1.1°

    • E. 

      75.3°

  • 18. 
    Cos 23 = (answer correct to 2 decimal places)
    • A. 

      0.935

    • B. 

      0.94

    • C. 

      0.921

    • D. 

      0.92

    • E. 

      -0.53

  • 19. 
    Tan 74o = (answer to 1 decimal place)
    • A. 

      -5.7

    • B. 

      3.4

    • C. 

      3.5

    • D. 

      2.3

  • 20. 
    Evaluate x if cos x =0.156(correct to the neearest degree)
    • A. 

      81°

    • B. 

    • C. 

      90°

  • 21. 
    Name (First and Last)
  • 22. 
    In the diagram below, buildings P and Q are 50m apart. The angle of elevation of T from R is 53° and the angle of depression of V from R is 41°. Determine the height TV of building Q?
    • A. 

      95.3m

    • B. 

      73.6m

    • C. 

      110m

    • D. 

      83.4m

  • 23. 
    If the side lengths of a triangle are 7, 6, and 9, the triangle is _____. 
    • A. 

      Obtuse

    • B. 

      Right

    • C. 

      Acute

    • D. 

      Cannot be formed