sir this is the question from the book -ML aggarwal( avichal publication) class 10th , chapter20 , heights and distances
we have given a figure and In the adjoining figure, the angle of elevation from a point P of the top of a tower QR, 50 m high is 600 and that of the tower PT from a point Q is 300.
we have to Find the height of the tower PT, correct to the nearest metre.
(ii) From a boat 300 metres away from a vertical cliff,
the angles of elevation of the top and the foot of a vertical concrete pillar at the edge of the cliff are 550 40’ and 540 20’ respectively.
Find the height of the pillar correct to the nearest metre.
question no 14 , heights and distances , ICSE board