right triangles and trigonometry HELP PLEASE

Mathematics
Tutor: None Selected Time limit: 1 Day

Feb 27th, 2015

2. 84/x=x/16

      x^2=84*16=21*4*16

      x=8*sqrt(21)

3.45/x=x/81

      x^2=81*45=81*9*5

          x=27*sqrt(5)

Feb 27th, 2015

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Feb 27th, 2015
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Feb 27th, 2015
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