anonymous
  • anonymous
In circle O, m arc BC = 90 and the area of triangle ABC is 18. What is the length of AC?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
|dw:1337896626150:dw|
anonymous
  • anonymous
triangle ABC is a 45-45-90 triangle. since the area is 18, BC = 6. so AC=6sqrt2 by similarity to the 45-45-90 triangle.
anonymous
  • anonymous
how'd you get that BC = 6?

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anonymous
  • anonymous
you agree that ABC is a 45-45-90 triangle?
anonymous
  • anonymous
yup.
anonymous
  • anonymous
then this is a square with area 36...|dw:1337897103553:dw|
anonymous
  • anonymous
so BC=6
anonymous
  • anonymous
ohhh, okay.
anonymous
  • anonymous
OHHH. OKAY :) thank you :)
anonymous
  • anonymous
yw... :)

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