Mid-segment of a trapezium (joining midpoints of legs) is parallel to bases and equals

Mid-segment of a trapezium (joining midpoints of legs) is parallel to bases and equals
  1. average of two parallel sides
  2. sum of parallel sides
  3. difference of parallel sides
  4. length of one diagonal

Solution

Mid-segment $= \dfrac{a+b}{2}$.

Asked in: MH-SSC-9

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