Answer:The perimeter of a trapezoid is equal to the sum of the lengths of all its sides.
Let's call the height of the trapezoid "h".
Then, the length of the two sides equal (78 - 30 - 14) / 2 = 22 ft.
The area of the trapezoid is equal to (30 + 14) / 2 * h = 22 * h.
We can now find h using the formula:
h = (2 * area) / (30 + 14) = (2 * area) / 44.
We don't know the area, so we cannot find h.
Explanation: