Final answer:
The shape of the tank is likely either a cylinder or a cone.
Step-by-step explanation:
The shape of the tank can be determined by the dimensions and characteristics of the tank. Based on the options given, we can eliminate the cuboid and sphere since they are not commonly used to describe tanks.
Cylinders and cones, on the other hand, are commonly used to describe tanks. A cylinder is a three-dimensional shape that has two parallel circular bases, while a cone has a circular base and a curved surface that tapers to a point.
Without further information, it is difficult to determine which specific shape the tank is, but it is likely either a cylinder or a cone.