Question

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 revolution about the earth

Answer 1

2,412,743 km

Explanation:

Imagine the path of the moon around the Earth is a circle. Therefore, the Earth is at the center of the circle. Thus, the distance from the Earth (circle's center) to the moon (circle's edge) is the radius. Using the formula for circumference of a circle:

`C=2\cdot\pi\cdot{r}\\C=2\cdot\pi\cdot{384000}\\C=2412743`

Therefore, the circumference of the path of the moon in one revolution about the Earth is about 2,412,743 km.