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19 January, 19:44

The lengths of the legs of a right triangle are 6 cm and 3 cm.

How long is the hypotenuse?

Round the answer to the nearest tenth of a centimeter.

5.2

6.7

27

45

+2
Answers (1)
  1. 19 January, 20:12
    0
    We will calculate the length of the hypotenuse using the Pythagorean theorem. Suppose that the hypotenuse = c, then:

    c^2 = 6^2 + 3^2

    c^2 = 36 + 9

    c^2 = 45

    c = square root of 45

    c = square root of 9 * square root of 5

    c = 3 * square root of 5; square root of 5 = approximately 2,24

    c = 3 * 2,24 = 6,72 = 6,7

    The correct answer is 6,7.
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