Class 10 Mathematics Chapter 9: Some Applications of Trigonometry — practice questions with answers
Free practice for Class 10 Mathematics, Chapter 9: Some Applications of Trigonometry. Try the solved questions below, then take a free test with instant marking and explanations.
56 questions27 easy, 15 medium, 14 hardNCERT · CBSE · State boards
Sample questions with solutions
Q1. The line drawn from the eye of an observer to the point being viewed is called the ______.
- line of sight
- horizontal line
- angle of elevation
- vertical line
Show answer
Answer: A. line of sight
Why: It joins the eye to the point in the object. [p.133]
Why: It joins the eye to the point in the object. [p.133]
Q2. The angle of elevation of an object is the angle formed by the line of sight with the horizontal when the object is ______ the horizontal level.
- above
- below
- on
- perpendicular to
Show answer
Answer: A. above
Why: We raise our head to look at it. [p.133]
Why: We raise our head to look at it. [p.133]
Q3. The angle of depression of an object is the angle formed by the line of sight with the horizontal when the object is ______ the horizontal level.
- below
- above
- on
- parallel to
Show answer
Answer: A. below
Why: We lower our head to look at it. [p.134]
Why: We lower our head to look at it. [p.134]
Q4. When we lower our head to look at a point, the angle the line of sight makes with the horizontal is the angle of ______.
Show answer
Answer: depression
Why: Below the horizontal: angle of depression. [p.134]
Why: Below the horizontal: angle of depression. [p.134]
Q5. The line from the eye of an observer to the object viewed is called the line of ______.
Show answer
Answer: sight
Why: Line of sight. [p.133]
Why: Line of sight. [p.133]
Q6. When we raise our head to look at an object, the angle formed with the horizontal is the angle of elevation.
True or false?
Show answer
Answer: True
Why: Object above eye level gives an angle of elevation. [p.133]
Why: Object above eye level gives an angle of elevation. [p.133]
Practise all 56 questions free
Timed test, marked instantly, with the correct answer and explanation for every question and a chapter-wise report.
Start the free testUnderstand it by doing
Try the interactive Maths Lab for Class 10.
Frequently asked questions
How many practice questions are there for Class 10 Mathematics Chapter 9: Some Applications of Trigonometry?
56 questions (27 easy, 15 medium, 14 hard). A few are solved on this page; the free test shows the answer and explanation for every question after you submit.
Is this chapter from the NCERT book?
Yes — it follows the NCERT Class 10 Mathematics syllabus, used by CBSE and many state boards.