Math Algebra

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The length of the hypotenuse of a right triangle is 30 m. The length of one leg is 20 cm. Find the length of the other leg. Round your answer to the nearest tenth
I know how to do hypotenuse but this doesn't seem to work out...help please

  • Math Algebra -

    a^2 + b^2 = c^2

    20^2 + b^2 = 30^2

    400 + b^2 = 900

    b^2 = 500

    b = 22.36 = 22.4 cm

  • Math Algebra -

    So that doesn't really work then does it Ms. Sue - isn't it supposed to be a even number?

  • Math Algebra -

    I don't think it's supposed to be an even or whole number. Your directions say to round to the nearest tenth.

  • Math Algebra -

    Thank you Ms. Sue - I understand now... :)

  • Math Algebra -

    You're welcome, Deborah. :-)

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