How is the median of a trapezoid calculated?

The correct calculation for finding the median of a trapezoid is to take the sum of the lengths of its two parallel sides (often referred to as the bases) and divide that sum by two. This is precisely what is described by the chosen answer.

The median of a trapezoid serves as a segment that runs parallel to the bases and connects the midpoints of the non-parallel sides. This median effectively represents the average length of the two bases. By adding the lengths of the top and bottom sides (the two parallel sides) and dividing by two, you obtain the length of the median.

This approach is consistent with geometric principles and can be visually verified by observing the positioning of the trapezoid's median in relation to the bases, ensuring that it accurately reflects their average length.