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In the above figure, O is the center of circle. Angle AOB=90∘. The line AC is parallel to OD. OB's length is equal to twenty centimeters. BD's length is equal to four centimeters. Determine the length of AB.

 

 Aug 26, 2020
 #1
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Line BC may or may not be parallel to line AO.smiley 

 Aug 26, 2020
 #2
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If AC is parallel to OB, that doesn't make BC parallel to AO.

 

There's not enough informatio for this problem to be solved!!!

 

 

 Aug 27, 2020

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