Question

The diameter of Mars is about 6.8 x 10^3 km. The diameter of Earth is about 1.2763 x 10^4 km. About how much greater is Earth's diameter than Mars?

Answer 1

To find how much diameter of Earth is greater than diameter of Mars .

we need D(Earth) / D(Mars).

D(Earth) / D(Mars) = 1.2763 x 10⁴km/6.8  x 10³ km ≈ 1.9

D(Earth) / D(Mars) ≈ 1.9