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OpenStudy (anonymous):
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OpenStudy (anonymous):
OpenStudy (mertsj):
D
OpenStudy (anonymous):
how..?
OpenStudy (dumbcow):
One way is to recognize that triangle CDF is a special 45-45-90 right triangle which has side ratio of 1:1:sqrt2 CF=BE BE can be found by using pythagorean theorem --> BE = sqrt(13^2 -5^2) = 12 Therefore the side lengths of triangle CDF are 12:12:12sqrt2
OpenStudy (mertsj):
|dw:1329011887365:dw|
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