Question

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?

Answer 1

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.