Question

A lower and a pole stand vertically on the same level ground. It is observed
that the angles of depression of top and foot of the pole from the top of the
- lower of height 60 m is 30% and 60% respectively. Find the height of the pole​

Answer 1

REF.Image.

Let AB be the tower & CD be the

pole

As, given in the question BE = 20 m

∴ In △BCE,tan30

∘

=

CE

20

⇒

3

1

=

CE

20

∴CE=20

3

Now, in △ACEtan60

∘

=

CE

h

3

=

20

3

h

⇒h=60

∴ Height of tower = 60+20 = 80 m

solution