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Pankaj Kumar Bargoti

· started a discussion

· 1 Months ago

incorrect answer (Question: 188696.0 )

you have taken wrong value of Tan 60 in you solution

Question:
Two poles of equal heights are standing opposite to each other on either side of a road which is 150 m wide. From a point between them on the road, the angles of elevation of their tops are 30º and 60º. Then height of each pole in metres, is – 
Options:
A) 37.5\(\sqrt{3}\)
B) 25 \(\sqrt{3}\)
C) 28 \(\sqrt{3}\)
D) 30 \(\sqrt{3}\)
Solution:
Ans: (a)


Second Method


Knowledge Expert

· commented

· 1 Months ago

Now, its correct....

see:

AE/AB = tan60

AE/AB = root 3

AE = AB * root 3

so, AB = AE* 1/root 3

Thats ir.
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