The moon's distance from the earth is `360000 km` and its diameter subtends an angle of `42'` at the eye of the observer. The diameter of the moon in kilometers is

Explanation

To find the diameter of the moon based on the given information, we can follow these steps:

### Step 1: Understand the given data
- Distance from the Earth to the Moon (r) = 360,000 km
- Angle subtended by the diameter of the Moon (θ) = 42 minutes

### Step 2: Convert the angle from minutes to radians
First, we need to convert the angle from minutes to degrees, and then from degrees to radians.
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