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22 November, 14:23

A right triangle has a leg of 13 cm and a hypotenuse of 21 cm.

What is the length of the other leg?

Round to the nearest tenth.

+2
Answers (2)
  1. 22 November, 14:44
    0
    Use the Pythagorean theorem to solve:

    X = square root (21^2 - 13^2)

    x = 16.5 cm
  2. 22 November, 14:51
    0
    13x13 = 169. 21x21 = 441. 441-169=272. the length of the other leg is the square root of 272 which is 16.4
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