thematerialmatrix thematerialmatrix
  • 15-07-2018
  • Mathematics
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URGENTLY ANSWER, RIGHT TRIANGLE TRIGNOMETRY

URGENTLY ANSWER RIGHT TRIANGLE TRIGNOMETRY class=
URGENTLY ANSWER RIGHT TRIANGLE TRIGNOMETRY class=

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GoddessofDork
GoddessofDork GoddessofDork
  • 15-07-2018

So for this you will be doing proportions. Your equation will look like this: [tex] \frac{5}{DE} =\frac{DE}{20} [/tex]


Firstly, cross multiply: [tex] DE^2=100 [/tex]


Next, square root both sides of the equation, and your answer should be [tex] DE=10 [/tex]

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