Question 189882
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Statement a is always true, that is the definition of a midpoint after all


Statement b is only true if point E lies on the segment DF because the mid-point of a line segment must be a point on the line segment.  E could be other than on the line segment if it were the vertex of isoceles triangle DEF where DE and EF are the congruent sides.



John
*[tex \LARGE e^{i\pi} + 1 = 0]
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