anonymous
  • anonymous
civil engineer constructing tunnel. tunnel is 50M wide and 15 M high, and is part of a circle. What is the diameter of the circle?
Mathematics
schrodinger
  • schrodinger
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anonymous
  • anonymous
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anonymous
  • anonymous
The tunnel is a chord of the circle (Did I get that right?) It is 50 m across, and 15 M high. Sorry, I fogot what it was called
anonymous
  • anonymous
It is a secant solve this to get radius (r-15)^2 + 25^2 =r^2

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