Question 158
The radius of the Earth is 6400 km and that of Mars is 4300000 m. Whose radius is bigger and by how much?
Given, the radius of the Earth = 6400 km
= 6400000 m [1 km = 1000 m]
and radius of Mars = 4300000 m. On comparing both the radii, we get
The radius of Earth > Radius of Mars
Difference between the two radii
= 6400000 - 4300000= 2100000 m
Hence, the radius of Earth is bigger and by 2100000 m.