Question

From a boat 150 m away from the vertical cliff, the angles of elevation of the top and the foot of a vertical pillar which is at the top of the cliff are 60° and 45° respectively. Calculate (i) the height of the cliff (ii) the height of the pillar.​

Answer 1

Answer:

height of cliff=150m and height of pillar=150root over3

Step-by-step explanation: tan45degree=1= ht of cliff/150m or ht of cliff=150m.

Again, tan60degrees=(3)1/2= ht of pillar/150m or ht of pillar= 150 root over 3

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