The height of the trapezoid is 6 cm and the area is 30 square cm. What is its middle line?

The length of the midline of the trapezoid is:

KM = (BC + AD) / 2.

The area of the trapezium is determined by the formula:

Savsd = (ВС + АD) * ВН / 2.

Then Savsd = KM * ВН.

KM = Savsd / ВН = 30/6 = 5 cm.

Answer: The middle line of the trapezoid is 5 cm.

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