Question

A 7 m long flagstaff is fixed on the top of a tower standing on the horizontal plane. From a point on the ground, the angles of elevation of the top and bottom of the flagstaff are 60° and 45° respectively. Find the height of the tower correct to one place of decimal

Answer 1

Answer:

Let CD be the flagstaff whose height is 7 m, fixed on the tower BC of height h metres. From a point A on the ground the angles of elevation of top and bottom of the flagstaff are 45° and 30° respectively. Hence, the height of the tower = 9.56 m.

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