40. An aeroplane is flying at a height of 210 m. Flying at this height – InterviewSolution

1.	40. An aeroplane is flying at a height of 210 m. Flying at this height at some instant theangles of depression of two points in a line in opposite directions on both the banks oftriver are 45° and 60P. Find the width of the river. (Use 3 1.73) ICBSE 2015
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