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OpenStudy (anonymous):
What is the diameter of this circle if BC=17 and DC=30?
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OpenStudy (anonymous):
OpenStudy (callisto):
|dw:1334734918657:dw| Use Pyth Thm (17+r)^2 = 30^2 +r^2 289 + 34r +r^2 = 900 + r^2 34r = 611 r= ... Diameter = 2r= ...
OpenStudy (callisto):
The number was ugly...
OpenStudy (anonymous):
Thank you again! c: I didn't realize that it was a right triangle at first, somehow...
OpenStudy (callisto):
Whenever you see a tangent, see a centre, join them, you'll get a right angle triangle. Then, things are usually easier :)
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OpenStudy (anonymous):
Oh, okay! Thanks for the tip! :D
OpenStudy (callisto):
Welcome :) Hope it helps
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