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The moon is about 384000 km from the Earth and its path around the Earth is nearly circular. Find the circumference of the path travelled by the moon every month.

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245689 km

2411520 km

6575188 km

7644778 km

answer is B.

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Detailed Solution

Concept: we will use the fact that the moon would revolve around Earth every month. Thus, in order to solve the question, we use the formula of circumference of the circle. This is given by 2πr.
Here,

radius = 384000 km

So,

length of path in circumference

= 2 πr = 2 \times 3.14 \times 384000

= 2 \times 314 \times 3840

2411520 km .

Hence, the correct answer is option (2) .

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