The moons distance from the earth is `360 , 000k m s` and its diameter subtends an angle of 31 at the eye of the observer. Find the diameter of the moon.

Explanation

We know that
angle =`(arc)/(radius)`

​=`(arc)/R`
​

So


angle =`α/R`
​
= angle ×R=`(31 xx pi)/(60 xx 180) 36,0000×10^3 `meter

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