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1
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In circle O, chords  and 
intersect at E. If  ,  , and  ,
then CE equals
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2
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In circle  , chords  and  intersect at  . If  ,  , and  , what is the length of  ?
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3
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In a circle, a chord of 10 centimeters bisects a chord of 8 centimeters.
The length of the shorter segments of the 10-centimeter chord is?
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