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In circle O, m arc BC = 90 and the area of triangle ABC is 18. What is the length of AC?
 one year ago
 one year ago
In circle O, m arc BC = 90 and the area of triangle ABC is 18. What is the length of AC?
 one year ago
 one year ago

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xRAWRRx3Best ResponseYou've already chosen the best response.0
dw:1337896626150:dw
 one year ago

dpaIncBest ResponseYou've already chosen the best response.2
triangle ABC is a 454590 triangle. since the area is 18, BC = 6. so AC=6sqrt2 by similarity to the 454590 triangle.
 one year ago

xRAWRRx3Best ResponseYou've already chosen the best response.0
how'd you get that BC = 6?
 one year ago

dpaIncBest ResponseYou've already chosen the best response.2
you agree that ABC is a 454590 triangle?
 one year ago

dpaIncBest ResponseYou've already chosen the best response.2
then this is a square with area 36...dw:1337897103553:dw
 one year ago

xRAWRRx3Best ResponseYou've already chosen the best response.0
OHHH. OKAY :) thank you :)
 one year ago
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