A vertical pole stands on the level ground. From a point on
the ground, 25 m away from the foot of the pole, the angle of
elevation of its top is found to be 60°. Find the height of the pole.
[Take V3 = 1.732.]
Answers
Answered by
0
Step-by-step explanation:
Suppose AB represents the pole,
O is angle of elevation at the top of the pole
from a point 60 m away from the pole.
Then, OA = 60 m, ∠O = 30
o
∴ tan 30
o
=
OA
AB
⇒
3
1
=
60
AB
⇒AB=
3
60
= 20
3
.
∴AB=20×1.73=34.6
∴ Height of the pole is 34.6 m
Similar questions