The figure is a parallelogram. If the area of triangle BCD is 15 square kilometers, What is the area of ABCD?

well, since BCD is half of the parallelogram, I'd say that ABCD = 30 km^2

To find the area of the parallelogram ABCD, we need to know the height of the parallelogram. Unfortunately, the given information about the area of triangle BCD alone is not sufficient to calculate the area of the parallelogram.

The area of a parallelogram is equal to the product of its base and height. In this case, the base of the parallelogram is the length of side BC, and the height is the perpendicular distance from side BC to side AD.

To calculate the area of the parallelogram ABCD, we need either the length of side BC and the height, or the lengths of both AD and BC. Without more information, it is not possible to determine the area of the parallelogram.

If you have any additional information or measurements, please provide them, and I will be happy to help you further.