Maths Class 10 Notes for Some Applications of Trigonometry

LINE OF SIGHT

Suppose we are viewing an object standing on the ground. Clearly, the line of sight ( or line of vision) to the object is the line from our eyes to the object, we are viewing.

(A) Angle of elevation :

Maths Class 10 Notes - Some Applications of Trigonometry

Let `0′ be the eye of observer and Q be an object and OX is a horizontal line then ∠XOQ is called the angle of elevation and generally it is denoted by
Theeta or Phie i.e ‘0’ or φ.

(b) Angle of Depression: ‘P’ be the object lies below the horizontal

Maths Class 10 Notes - Some Applications of Trigonometry

line OX, then ∠XOP is called the angle of depression and is denoted by ‘0’ or `φ’

NOTE: For solving the height and distances problem, draw figure, and see the relation between known to unknown.

Click Here for All Maths Class 10 Notes

You wish to report grammatical or factual errors within our online articles, you can let us know using the article feedback form.

comments