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March 29, 2015

Homework Help: maths --plse help me..

Posted by Meenakshi on Thursday, December 13, 2012 at 11:36am.

The pilot of an aircraft flying horizontally at a speed of 1200 Km/hr observes an angle of depression of a point on the ground changes from 30 degree to 45 degree in 15 seconds. Find the height of the aircraft at which it is flying?

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