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anonymous

  • one year ago

If AC = 36 and BC = 18, find AD. Round to the nearest tenth, if necessary. How do I set up the equation?

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    you can use the rule a squared + b squared = c squared. where a and b are the shorter lengths of the right-angled triangle and c is the length of the hypotenuse. because you already have the lengths of AC and BC, you can easily find AB. then using AB, you can do the next step. make sense?

  3. anonymous
    • one year ago
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    How do I figure out the measurements of a and b?

  4. anonymous
    • one year ago
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    |dw:1438406397050:dw| you already have the lengths of A and C ... you're given them in the question.

  5. rhr12
    • one year ago
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    AC/AB = AB/AD then plug in the info we know 36/(18*sqrt(3)) = (18*sqrt(3))/AD and then solve for AD

  6. rhr12
    • one year ago
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    36*AD = (18*sqrt(3))(18*sqrt(3)) 36*AD = 18*18*sqrt(3)*sqrt(3) 36*AD = 18^2*(sqrt(3))^2 36*AD = 324*3 36*AD = 972 I'll let you finish

  7. wolf1728
    • one year ago
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    Side AB^2 = 36^2 -18^2

  8. rhr12
    • one year ago
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    @jillina29 get it?

  9. anonymous
    • one year ago
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    ohh yes thank you! @rhr12

  10. wolf1728
    • one year ago
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    So do you have an answer?

  11. anonymous
    • one year ago
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    I have to resolve the problem because I multiplied wrong, but I almost got it

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