Math, asked by iarchitabhaduri, 4 days ago

The angle of elevation of a tower at a point 90 m from it is cot-1(4/5).Then the height of the tower is.

Answers

Answered by k20140

1

Answer:

The height of the tower is 72m.

Step-by-step explanation:

cot-¹ (4/5) = tan 4/5

tan a = AB / BC

4/5 = x / 90

4 = x / 18

x = 72m

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