Question

Radius of the Earth is 6400 km and that of
Mars is 4300000 m. Whose radius is bigger
and by how much?​

Answer 1

$6400km = 6400 \times {10}^{3} \\ = 6400000m \\ \\ radius \: \: \: of \: \: earth = 6400000m \\ \\ radius \: \: \: of \: \: \: mars \: = 4300000m \\ \\ now \: \\ \\ r1 - r2 = 6400000 - 4300000 \\ \\ = 2100000m$

Answer 2

Answer:

\begin{gathered}6400km = 6400 \times {10}^{3} \\ = 6400000m \\ \\ radius \: \: \: of \: \: earth = 6400000m \\ \\ radius \: \: \: of \: \: \: mars \: = 4300000m \\ \\ now \: \\ \\ r1 - r2 = 6400000 - 4300000 \\ \\ = 2100000m\end{gathered}

6400km=6400×10

3

=6400000m

radiusofearth=6400000m

radiusofmars=4300000m

now

r1−r2=6400000−4300000

=2100000m

Step-by-step explanation:

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