How to find out angle of elevation of theta
Answers
Answer:
theta ia a variable which we can place a value
Let us assume an example where an observer is standing on the ground in front of a pole at a distance of ‘x’ meters from the bottom of the pole. Let us assume that height of pole is ‘y’ meters. If the observer is seeing the top most point of the pole from the ground level, and the angle made by the observer’s eye and the top most point of pole be ‘theta(ϴ)’ in the given figure:
Angle of Elevation
0Save
In the above figure, let
P be the top most point of the pole.
Q be the bottom point of the pole.
R be the position of the observer’s eye.
Then,
PQ be the pole of height ‘y’ units;
QR be the distance between the bottom of pole and observer’s eye of ‘x’ units.
PR be the line of sight or the line along which observer is observing the top of the pole of ‘h’ units.
The angle ‘θ’ is the angle of elevation, and it can be found using following formulae:
sin θ = y/h; cosec θ = h/y
cos θ = x/h; sec θ = h/x
tan θ = y/x; cot θ = x/y.
depending upon the data given in the question, corresponding formula is applied to find out the angle of elevation