Maths Special Right Triangles Quiz 2

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| By Philip Benanti
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Philip Benanti
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Quizzes Created: 18 | Total Attempts: 27,123
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Maths Special Right Triangles Quiz 2 - Quiz

Let's start this quiz it will give you the different right triangles, Find out now how much do you know about it!


Questions and Answers
  • 1. 

    If you know one side of a 45-45-90 triangle, then you can ALWAYS find the exact length of the other 2 sides.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    No matter WHAT the size of the 45-45-90 triangle, the sides are ALWAYS in the same ratio.

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  • 2. 

    Find x and y.

    • A.

      X = 5*sqrt(2), and y = 5*sqrt(2)

    • B.

      X = 5*sqrt(3), and y = 5

    • C.

      X = 5, and y = 5*sqrt(2)

    • D.

      X = 5, and y = 5*sqrt(3)

    Correct Answer
    D. X = 5, and y = 5*sqrt(3)
    Explanation
    The ratio of the sides of a 30-60-90 triangle are x, x*sqrt(3), and 2x (listed in order of the side opposite the 30,60,90).

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  • 3. 

    No matter what positive number x is, x*sqrt(3) is LARGER than 2x.

    • A.

      True

    • B.

      False

    • C.

      Depends on what positive number x is.

    Correct Answer
    B. False
    Explanation
    sqrt(3) is roughly 1.732, so when you multiply a number by 1.732, that's LESS than multiplying that number by 2.

    That's why "2x", the LARGER number, is across from the right angle, the LARGEST angle.

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  • 4. 

    Find x and y.

    • A.

      X=70*sqrt(2), and y=70

    • B.

      X=140, and y=70*sqrt(3)

    • C.

      X=70*sqrt(3), and y=140

    Correct Answer
    B. X=140, and y=70*sqrt(3)
    Explanation
    The ratio of the sides of a 30-60-90 triangle are x, x*sqrt(3), and 2x (listed in order of the side opposite the 30,60,90).

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  • 5. 

    Find x and y.

    • A.

      X = 15*sqrt(3), and y = 30

    • B.

      X = 7.5*sqrt(3), and y = 15*sqrt(3)

    • C.

      X = 5*sqrt(3), and y = 10*sqrt(3)

    Correct Answer
    C. X = 5*sqrt(3), and y = 10*sqrt(3)
    Explanation
    The ratio of the sides of a 30-60-90 triangle are x, x*sqrt(3), and 2x (listed in order of the side opposite the 30,60,90).

    Rate this question:

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 02, 2015
    Quiz Created by
    Philip Benanti
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