The information given in the question does not give the shape of the area so it is impossible to answer the question.
The most compact shape would be circular with a radius of just over 8.92 feet.
With each of infinitely many polygonal shapes, there are infinitely many possible dimensions. Consider a rectangle.
Let its length be L feet where L is any value > sqrt(250).
Let is breadth be B = 250/L feet.
Then area = L*B = L*250/L = 250 sq feet.
But L can have infinitely many values and therefore the dimensions of the rectangle are indeterminate.
For example, L = 25, B = 10
L = 250, B = 1
L = 25000, B = 0.01
and so on.
And then there are non-rectangular quadrilaterals, triangles, pentagons, hexagons, ... .
The dimensions will be square feet.
The dimensions of square feet is Length2 or L2
Square feet have dimensions L2 while cubic feet have dimensions L3 so they are not interchangeable.
The dimensions would be 40 feet by 40 feet.
about 5000 square feet, if the corners are roughly square.
250 x 250
The dimensions of a cattle car were approximately 25 feet by 10 feet. This gave the cattle car an area of 250 square feet.
The question, as stated, cannot be answered sensibly. A square metre is a measure of area, with dimensions [L2]. A metre is a measure of distance, with dimensions [L]. The two measure different things and elementary dimensional analysis teaches that you cannot convert between measures with different dimensions such as these without additional information.
If the given dimensions are in feet then there are 25 times 10 = 250 square feet
Multiply the two dimensions to get the area. In this case the calculations gives you 13,375 square feet.
250 square meters is 2,690.98 square feet.
250 square feet = ~27.8 square yards.
The dimensions will be square feet.
250 feet by 100 feet is 25000 square feet.
250 square meters is 2,690.98 square feet.
The dimensions are square feet or [Length2]
250 square meters is 2,691 square feet.