Do You Know Your Math? Trigonometry Quiz

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Do You Know Your Math? Trigonometry Quiz - Quiz

Trigonometry is the study of the relationship between lengths and angles of triangles. We covered a lot of trigonometry problems I the past few weeks. Do you think you understood them all? Test your knowledge by trying to answer the quiz below. All the best and remember to keep practicing!


Questions and Answers
  • 1. 

    What is the correct formula to find the Pythagorean Theorem?

    • A.

      A2+b2=c2

    • B.

      B2+c2=a2

    • C.

      A2+c2=b2

    Correct Answer
    A. A2+b2=c2
    Explanation
    The Pythagorean Theorem states that in a right-angled triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides. Therefore, the correct formula to find the Pythagorean Theorem is a2 + b2 = c2, where a and b are the lengths of the two legs of the triangle, and c is the length of the hypotenuse.

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  • 2. 

    Who created the Pythagorean Theorem?

    • A.

      Your Mom

    • B.

      My Mom

    • C.

      Pythagoras

    • D.

      No One

    Correct Answer
    C. Pythagoras
    Explanation
    Pythagoras is the correct answer because he is widely credited with discovering and proving the Pythagorean Theorem, which states that in a right-angled triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the other two sides. This theorem has been fundamental in mathematics and has numerous applications in various fields.

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  • 3. 

    What are the legs of a right triangle?

    • A.

      A,b

    • B.

      A,c

    • C.

      B,c

    Correct Answer
    A. A,b
    Explanation
    The legs of a right triangle are the two sides that form the right angle. In this case, the correct answer is a,b because these two options represent the two sides that form the right angle. Option a,c and b,c are incorrect because they do not represent the sides that form the right angle.

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  • 4. 

    What side is the hypotenuse of a right triangle?

    • A.

      A

    • B.

      B

    • C.

      C

    • D.

      G

    Correct Answer
    C. C
    Explanation
    The hypotenuse of a right triangle is the side opposite the right angle, and it is always the longest side of the triangle. In this case, option c represents the hypotenuse.

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  • 5. 

    What is the longest side of a right triangle called?

    • A.

      Leg g

    • B.

      Leg b

    • C.

      Leg a

    • D.

      Hypotenuse

    Correct Answer
    D. Hypotenuse
    Explanation
    The longest side of a right triangle is called the hypotenuse. The hypotenuse is opposite the right angle and is the side that is opposite the right angle. It is also the side that is directly across from the right angle.

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  • 6. 

    Find the Hypotenuse if a=12 and b=16

    • A.

      C=93

    • B.

      C=42

    • C.

      A=20

    • D.

      C=20

    Correct Answer
    D. C=20
    Explanation
    The given question is asking to find the hypotenuse of a right-angled triangle with the given values of the other two sides, a and b. The formula to find the hypotenuse is c = √(a^2 + b^2). Plugging in the given values of a=12 and b=16 into the formula, we get c = √(12^2 + 16^2) = √(144 + 256) = √400 = 20. Therefore, the correct answer is c=20.

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  • 7. 

    Find the Hypotenuse if a=5 and b=7.

    • A.

      C=8.60

    • B.

      C=19.58

    • C.

      B=39.84

    • D.

      G=47.29

    Correct Answer
    A. C=8.60
    Explanation
    The correct answer is c=8.60. This can be calculated using the Pythagorean theorem, which states that in a right triangle, the square of the length of the hypotenuse (c) is equal to the sum of the squares of the lengths of the other two sides (a and b). In this case, a=5 and b=7. Therefore, c^2 = 5^2 + 7^2 = 25 + 49 = 74. Taking the square root of 74 gives us c=8.60.

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  • 8. 

    Find the length of the Leg if a=4 and c=10

    • A.

      G=94.58

    • B.

      C=37.90

    • C.

      B=9.17

    • D.

      A=Nothing

    Correct Answer
    C. B=9.17
    Explanation
    The given information provides the values of g, c, b, and a. We are asked to find the length of the leg. From the given information, we can see that the value of b is 9.17. Therefore, the length of the leg is 9.17.

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  • 9. 

    Find the length of the leg and round to the nearest hundredth if c=10 and b=7

    • A.

      A=7.14

    • B.

      A=92.38

    • C.

      G=73.73

    Correct Answer
    A. A=7.14
    Explanation
    The length of the leg can be found using the Pythagorean theorem, which states that in a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides. In this case, we are given that c is the hypotenuse and b is one of the legs. Therefore, we can use the formula a = sqrt(c^2 - b^2) to find the length of the other leg. Plugging in the values c=10 and b=7, we get a = sqrt(10^2 - 7^2) = sqrt(100 - 49) = sqrt(51) ≈ 7.14. Therefore, the length of the leg is approximately 7.14.

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  • 10. 

    Find the length of the missing side. if a=4 and c=5.

    • A.

      1

    • B.

      3

    • C.

      6.4

    • D.

      9

    Correct Answer
    B. 3
    Explanation
    Given that a = 4 and c = 5, we can use the Pythagorean theorem to find the length of the missing side. The theorem states that in a right triangle, the square of the length of the hypotenuse (c) is equal to the sum of the squares of the lengths of the other two sides (a and b). Therefore, we can use the formula c^2 = a^2 + b^2 to find the missing side. Plugging in the values, we get 5^2 = 4^2 + b^2. Simplifying, we have 25 = 16 + b^2. Subtracting 16 from both sides, we get 9 = b^2. Taking the square root of both sides, we find that b = 3. Therefore, the length of the missing side is 3.

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Apr 29, 2013
    Quiz Created by
    Andrew Rexen
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