Algebra word problem

A 30 inch TV set has a width of 24 inches. What is its height?

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  1. Use this formula for finding the height and width of a triangle when you know the hypotenuse. Let a = the height.

    a^2 + b^2 = c^2
    a^2 + 24^2 = 30^2
    a^2 + 576 = 900
    a^2 = 324
    a = ?

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    Ms. Sue
  2. 324 divided by sqrt is 18?

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  3. Yep! 18 is correct.

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    Ms. Sue
  4. Thank you

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  5. You're welcome.

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    Ms. Sue

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