Triangle Inequality Trivia Quiz

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  • 1/10 Questions

    Which of these laws best explains triangle inequality?

    • Cosine rule
    • Sine rule
    • Heron's formula
    • Pythagorean theorem
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About This Quiz

Triangle inequality is a law of triangles which states that, for any triangle, the sum of the lengths of any two sides must be greater than or equal to the length of the remaining side. What else do you know about inequalities of triangles? Try this quiz.

Triangle Inequality Trivia Quiz - Quiz

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  • 2. 
    Which of these lines is the longest in a right angle triangle? - ProProfs

    Which of these lines is the longest in a right angle triangle?

    • Arc

    • Opposite

    • Hypotenus

    • Perpendicular

    Correct Answer
    A. Hypotenus
    Explanation
    In a right-angled triangle, the hypotenuse is the longest side. It is located opposite the right angle (90-degree angle). The Pythagorean theorem states that the square of the hypotenuse is equal to the sum of the squares of the other two sides (legs) of the triangle. This theorem highlights the unique relationship between the hypotenuse and the other sides, emphasizing its length as the greatest among them. 

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  • 3. 
    Triangle inequality is a theorem about which of the following? - ProProfs

    Triangle inequality is a theorem about which of the following?

    • Distance

    • Trigonometric values

    • Triangle properties

    • Heights

    Correct Answer
    A. Distance
    Explanation
    The triangle inequality theorem states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side. This theorem applies specifically to distances, as it helps determine if a given set of side lengths can form a valid triangle. It does not apply to trigonometric values, triangle properties, or heights.

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  • 4. 
    The triangle inequality is a consequence of the Pythagorean theorem for which of these triangles? - ProProfs

    The triangle inequality is a consequence of the Pythagorean theorem for which of these triangles?

    • Right Triangles

    • Issoceles

    • Equilateral

    • Oblique

    Correct Answer
    A. Right Triangles
    Explanation
    The triangle inequality is a consequence of the Pythagorean theorem for right triangles. The Pythagorean theorem 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. The triangle inequality states that for any triangle, the sum of the lengths of any two sides is always greater than the length of the remaining side. Since the Pythagorean theorem only applies to right triangles, the triangle inequality is a consequence of it for right triangles.

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  • 5. 
    Which of these is correct?  - ProProfs

    Which of these is correct? 

    • The longest side equals the perimeter

    • The longest side is less than its semiperimeter

    • Sum of any two sides is less than the third

    • Sum of any two sides equals the perimeter

    Correct Answer
    A. The longest side is less than its semiperimeter
    Explanation
    The statement "The longest side is less than its semiperimeter" is correct because in any triangle, the length of the longest side is always less than half the sum of the lengths of the other two sides, which is the semiperimeter of the triangle. This is known as the Triangle Inequality Theorem.

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  • 6. 
    Which of these is triangle inequality written in? - ProProfs

    Which of these is triangle inequality written in?

    • Algebraic ratio

    • Vector

    • Scaler

    • Euclidean Geometry

    Correct Answer
    A. Vector
    Explanation
    The triangle inequality states that the sum of the lengths of any two sides of a triangle must be greater than or equal to the length of the remaining side. This concept is typically expressed using vectors, as vectors can represent the magnitude and direction of a line segment. Therefore, the correct answer is "Vector."

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  • 7. 
    Which of these is correct for a triangle with sides a, b and c? - ProProfs

    Which of these is correct for a triangle with sides a, b and c?

    • A + b ≤ c

    • A + b ≥ c

    • A - b ≥ c

    • A + b < c

    Correct Answer
    A. A + b ≤ c
    Explanation
    The correct answer is a + b ≤ c. This is because in a triangle, the sum of the lengths of any two sides must always be greater than or equal to the length of the remaining side. If a + b were greater than c, it would create a longer side than the remaining side c, resulting in an invalid triangle. Therefore, a + b ≤ c is the correct statement for a triangle.

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  • 8. 
    The triangle inequality expresses a relationship between which of the following? - ProProfs

    The triangle inequality expresses a relationship between which of the following?

    • Length of its sides

    • Its Perimeter

    • Variance

    • Abolute Values

    Correct Answer
    A. Abolute Values
    Explanation
    The triangle inequality states that the sum of the lengths of any two sides of a triangle must be greater than the length of the remaining side. This relationship is based on the concept of absolute values, which ensure that the lengths are positive and do not consider direction. Therefore, the correct answer is "Absolute Values" as it accurately represents the relationship expressed by the triangle inequality.

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  • 9. 
    What does φ stand for? - ProProfs

    What does φ stand for?

    • Cofficient of hypotenus

    • Constant

    • Abstract constant

    • Golden Ratio

    Correct Answer
    A. Golden Ratio
    Explanation
    The symbol φ stands for the Golden Ratio. The Golden Ratio is an irrational number approximately equal to 1.6180339887. It is often found in nature, art, and architecture, as it is believed to represent aesthetically pleasing proportions. The Golden Ratio can be found by dividing a line into two parts such that the ratio of the whole line to the longer part is equal to the ratio of the longer part to the shorter part.

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  • 10. 
    Which of these represent common ratio? - ProProfs

    Which of these represent common ratio?

    • φ²

    • √φ

    • √φ+(φ)²

    • √φ÷cφ

    Correct Answer
    A. √φ
    Explanation
    The common ratio is the value that is multiplied or divided to obtain the next term in a geometric sequence. In this case, the common ratio is represented by the symbol √ϕ, which is the square root of the golden ratio. This means that each term in the sequence is obtained by multiplying the previous term by the square root of ϕ.

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  • Current Version
  • Oct 16, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Apr 10, 2019
    Quiz Created by
    Gregorynaomi
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