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in the diagram below, chord df is parallel to the diameter ac. the length of df is 20 cm and the length of ac is 28 cm. what is the distance, in centimeters, from b, the center of the circle, to e, the midpoint of df?

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title

distance from chord to the center

your result

correct

difficulty

hard

your pace

0:02

others' pace

1:18

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