d e f are the midpoints of the sides ab bc and ca respectively of triangle abc if ac =8.2 then the value of DE is
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the answer will be 4.1 because when you will draw the diagram according to question you will see a internal triangle which is made by joining the mid points of all three sides.As d and e is the mid point
it is a theorem ,that a line joining mid points of a triangle is half and parallel to third line
therefore de=AC/2
de=4.1
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