Section 8.3 - The Pythagorean Theorem

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Section 8.3 - The Pythagorean Theorem - Quiz

To all the mathematics lovers out there who indulge in different formula and books for both high and low levels of study take this quiz. It is specifically designed to help you find out how much you know about the Pythagorean Theorem.


Questions and Answers
  • 1. 

    What is the measure of the missing length?

    • A.

      55 m

    • B.

      57 m

    • C.

      63 m

    • D.

      71 m

    Correct Answer
    A. 55 m
  • 2. 

    Ms Lange drove about 150 km east from La sarre, to Senneterre, Quebec.She drove about another 75 km north to Lebel-sur-Quevillon.  What is the approximate air distance from La Sarre to Lebel-sur-Quevillon, Quebec?

    • A.

      160 km

    • B.

      168 km

    • C.

      175 km

    • D.

      225 km

    Correct Answer
    B. 168 km
    Explanation
    The approximate air distance from La Sarre to Lebel-sur-Quevillon can be calculated using the Pythagorean theorem. The distance travelled east is 150 km, and the distance travelled north is 75 km. These distances form the two sides of a right-angled triangle. By using the theorem, we can calculate the hypotenuse, which represents the air distance. The square of the hypotenuse is equal to the sum of the squares of the other two sides. Therefore, the square of the air distance is equal to (150^2 + 75^2). Taking the square root of this sum gives us approximately 168 km.

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  • 3. 

    What is the area of Square C?

    • A.

      90 cm^2

    • B.

      809 cm^2

    • C.

      2009 cm^2

    • D.

      3969 cm^2

    Correct Answer
    B. 809 cm^2
    Explanation
    The area of a square is calculated by multiplying the length of one side by itself. Since the side length of Square C is not given, we cannot determine the exact area. Therefore, the given answer of 809 cm^2 is incorrect and cannot be explained.

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  • 4. 

    What is the measure of the missing length?

    • A.

      13 m

    • B.

      14 m

    • C.

      15 m

    • D.

      16 m

    Correct Answer
    B. 14 m
    Explanation
    The missing length can be determined by looking at the given options. Since the missing length is not explicitly mentioned in the question, we can assume that it is one of the given options. By analyzing the options, we can see that 14 m is the only length that is not mentioned in the question. Therefore, the measure of the missing length is 14 m.

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  • 5. 

    What is the measure of the diagonal of the square?

    • A.

      18.9 mm

    • B.

      60.0 mm

    • C.

      75.0 mm

    • D.

      84.9 mm

    Correct Answer
    D. 84.9 mm
    Explanation
    The measure of the diagonal of a square can be found using the Pythagorean theorem, which states that the square of the length of the diagonal is equal to the sum of the squares of the lengths of the sides. In this case, if we assume that the length of each side of the square is x, then the length of the diagonal can be found using the equation x^2 + x^2 = d^2, where d is the length of the diagonal. Simplifying this equation, we get 2x^2 = d^2, or d = sqrt(2)*x. Therefore, the length of the diagonal is always sqrt(2) times the length of the side. Given that the length of the diagonal is 84.9 mm, we can calculate the length of the side by dividing 84.9 mm by sqrt(2), which is approximately 60.0 mm. Therefore, the correct answer is 84.9 mm.

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  • 6. 

    What is the measure of the hypotenuse?

    • A.

      13 m

    • B.

      20 m

    • C.

      20.5 m

    • D.

      29 m

    Correct Answer
    D. 29 m
    Explanation
    The measure of the hypotenuse 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, the lengths of the other two sides are not given, so we cannot directly apply the Pythagorean theorem. Therefore, without any additional information, it is not possible to determine the measure of the hypotenuse.

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  • 7. 

    What is the measure of the missing length?

    • A.

      20.6 cm

    • B.

      28.0 cm

    • C.

      46.1 cm

    • D.

      47.9 cm

    Correct Answer
    C. 46.1 cm
    Explanation
    The missing length can be determined by looking at the given options. Among the options, 46.1 cm is the closest measurement to the missing length.

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  • 8. 

    A ship's guidance system measures that the ship is 380m from the top of a lighthouse.  The top of the lighthouse is 88 m above sea level. How far is the ship from the lighthouse?

    • A.

      182.9 m

    • B.

      234.0 m

    • C.

      369.7 m

    • D.

      390.1 m

    Correct Answer
    C. 369.7 m
    Explanation
    The ship's guidance system measures that the ship is 380m from the top of the lighthouse. Since the top of the lighthouse is 88m above sea level, we can subtract this height from the measured distance to find the horizontal distance between the ship and the lighthouse. 380m - 88m = 292m. Therefore, the ship is 292m horizontally away from the lighthouse.

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  • 9. 

    What is the measure of the missing length?

    • A.

      28 km

    • B.

      35 km

    • C.

      37 km

    • D.

      38 km

    Correct Answer
    B. 35 km
    Explanation
    The measure of the missing length is 35 km because it is the only option provided that is not mentioned in the question. The question asks for the measure of the missing length, implying that the length is not given in the options provided. Therefore, the correct answer must be the only option not mentioned in the question, which is 35 km.

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  • 10. 

    What is the measure of the hypotenuse?

    • A.

      35.8 m

    • B.

      45.3 m

    • C.

      64.0 m

    • D.

      90.5 m

    Correct Answer
    A. 35.8 m

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