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I have a geometry question

label Mathematics
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chords AB and BD intersect at E in circle O, if AB is parallel to DC and measurement of angle B =40 what is measurement of angle D angle A angle DEC arc AD arc BC

Mar 18th, 2015

In order for AB and BD to be chords, they must intersect at B, meaning B=E. There seems to be a typo in this question, unless E=B, which is redundant. 

Mar 19th, 2015

Please double check the question as there seems to be at typo.

Mar 19th, 2015

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Mar 18th, 2015
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Mar 18th, 2015
Jun 24th, 2017
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