Maths Special Right Triangles Quiz 2

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| By Philip Benanti
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Philip Benanti
Community Contributor
Quizzes Created: 18 | Total Attempts: 30,730
| Attempts: 446
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  • 1/5 Questions

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

    • True
    • False
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About This Quiz

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

Maths Special Right Triangles Quiz 2 - Quiz

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  • 2. 
    Find x and y. - ProProfs

    Find x and y.

    • X=70*sqrt(2), and y=70

    • X=140, and y=70*sqrt(3)

    • X=70*sqrt(3), and y=140

    Correct Answer
    A. 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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  • 3. 
    Find x and y. - ProProfs

    Find x and y.

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

    • X = 5*sqrt(3), and y = 5

    • X = 5, and y = 5*sqrt(2)

    • X = 5, and y = 5*sqrt(3)

    Correct Answer
    A. 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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  • 4. 

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

    • True

    • False

    • Depends on what positive number x is.

    Correct Answer
    A. 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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  • 5. 
    Find x and y. - ProProfs

    Find x and y.

    • X = 15*sqrt(3), and y = 30

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

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

    Correct Answer
    A. 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
  • Oct 14, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 02, 2015
    Quiz Created by
    Philip Benanti
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