A student uses a diagram to show the scale sizes of the planets which planets diameter would be approximately the distance across the United States Mercury Uranus Neptune Jupiter

The diameter of the planets in relation to the distance across the United States would be:

- Mercury: Mercury's diameter is about 3,032 miles, which is roughly equivalent to the distance across the United States.

- Uranus: Uranus' diameter is about 31,763 miles, which is much larger than the distance across the United States.

- Neptune: Neptune's diameter is about 30,775 miles, slightly smaller than Uranus but still much larger than the distance across the United States.

- Jupiter: Jupiter's diameter is about 86,881 miles, which is significantly larger than the distance across the United States.