SLPT question

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When the moon is setting at any given place ,the angle that is subtended at its center by the radius of earth passing through the given place is 57'
If the earth's radius be 6400 km ,find approximately the distance of the moon from earth.

#Mathematics #Trignometry

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Abhisek ·2010-09-17 10:49:19

Assuming that NO ATMOSPHERIC refraction or TIR occurs, the point at which the moon sets(i.e.A) can be considered tangential to the radius(OB) from the point of observation of the moon (i.e. B)...
The angle BAO is 57'....so using sin(57')=OB/OA, you ca find out the distance between the centres...

hopefully this is it..

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Basic Integral Calculus Operators Symbols Matrix Cases

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