The moon is observed from two diametrically opposite points A and B on earth.the angle theata subtended at the moon by the two directions of observation is 1 degree 54 min. given the diameter of earth to be 1.276 multiply by 10 raise to the power of 7meter.calculate the distance of moon from earth.
Please solve it.

Question

The moon is observed from two diametrically opposite points A and B on earth.the angle theata subtended at the moon by the two directions of observation is 1 degree 54 min. given the diameter of earth to be 1.276 multiply by 10 raise to the power of 7meter.calculate the distance of moon from earth.
Please solve it.

anonymous · Answer

This is a parallax calculation. Construct a right-angle triangle with the radius of the Earth as the opposite side, the distance from (the centre of) the Earth to the moon as the adjacent side, and half of theta as the angle between the adjacent and the hypotenuse.

Then you just have to work out the length of the adjacent side and subtract the radius of the Earth|dw:1401723819504:dw|

anonymous · Answer

thanks alot