A studfent uses a diagram tos how the scale sizes of the planets Which planets diameter would be aproximently the distance across the united states?

To determine which planet's diameter would be approximately the distance across the United States, we first need to know both the average diameter of the planets listed and the approximate distance across the United States.

The average diameter of the planets in question is approximately:

- Mercury: about 4,880 kilometers (3,032 miles)
- Jupiter: about 139,820 kilometers (86,881 miles)
- Uranus: about 50,724 kilometers (31,518 miles)
- Neptune: about 49,244 kilometers (30,598 miles)

The approximate distance across the contiguous United States from coast to coast is about 4,800 kilometers (3,000 miles).

Given these measurements, **Mercury**'s diameter, at about 4,880 kilometers (3,032 miles), is the closest to the distance across the United States.

Therefore, the answer is **Mercury**.