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11 February, 09:58

A right angle has a leg of 12 cm and a hypotenuse of 19 cm. What is the length of the other leg?

A. 7.0

B. 14.7

C. 22.5

D. 217.0

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Answers (1)
  1. 11 February, 13:12
    0
    H^2 = x^2 + y^2

    where h is the hypotenuse, x and y are the legs.

    h = 19cm

    x = 12cm.

    y = ?

    h^2 = x^2 + y^2

    y^2 = h^2 - x^2

    y^2 = 19^2 - 12^2

    y^2 = 361 - 144

    y^2 = 217

    y = sqrt (217)

    y = 14.7

    Letter B
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