The moon is about 384000 km from the earth and its path around the earth is nearly circular. Find the circumference of the path described by the moon in one complete revolution about the earth. (use π = 3.14)

Given:

The distance of the moon from the earth = 3,84,000 km

Since the Earth travels around the moon in a circular orbit.

So, we have a radius of the orbit (r) = 3,84,000 km

Now, the circumference length of the path $=2\mathrm{\pi r}$

$=2\times 3.14\times 384000 \mathrm{km}$  ...$(\mathrm{Taking} \mathrm{\pi }=3.14)$

$=2\times 314\times 3840\mathrm{ }\mathrm{km}$

$=2411520 \mathrm{km}$

Hence, the moon travels 24,11,520 km in one complete revolution.