CBSE Class 10 Maths Chapter 9 Some Applications of Trigonometry Syllabus 2026–27

The Chapter 9 Some Applications of Trigonometry chapter extends the use of trigonometric ratios beyond basic definitions and identities. It deals with solving real-world problems where direct measurement is not possible, using angles and distances.

You will work with situations involving heights and distances, where angles are observed from a point and used to form right-angled triangles. Based on these triangles, trigonometric ratios are applied to calculate unknown lengths such as the height of a tower or the distance between two points.

What Will You Learn in Some Applications of Trigonometry?

In Chapter 9 Some Applications of Trigonometry, your focus will shift towards: 

• Understanding the concept of line of sight in trigonometry problems

• Definition and identification of the angle of elevation and angle of depression

• Forming right-angled triangles based on given situations

• Applying trigonometric ratios to calculate heights and distances

• Solving problems involving one or two right triangles

• Interpreting word problems and converting them into mathematical form

CBSE Class 10 Some Applications of Trigonometry Topics: Detailed Breakdown

A clear idea of the included topics helps you avoid missing out on any concept:

To ensure alignment with the latest CBSE guidelines and optimise your preparation, it is recommended to review the updated list of deleted topics for Class 10 Maths and focus only on the currently prescribed syllabus.

Important Topics in Chapter 9 Some Applications of Trigonometry

While revising, give extra attention to:

• Clear understanding of the angle of elevation and depression, and how they are represented in diagrams

• Drawing accurate diagrams from word problems before applying any formula

• Applying correct trigonometric ratios based on given angles and sides

• Solving problems involving one triangle, as well as combined cases with two triangles

• Maintaining proper steps and units while solving height and distance questions

Also Check: Class 10th Some Applications of Trigonometry NCERT Solutions 

How to Strengthen Your Preparation for CBSE Class 10 Maths Exams?

Strong preparation in Class 10 Maths requires a balance of concept clarity, regular practice, and consistent revision. Focusing on the right resources and practising in an exam-oriented manner can help improve both accuracy and confidence.

• Build clear concepts across all topics:
  Focus on understanding key concepts from the CBSE Class 10 Maths syllabus to solve different types of questions with confidence.
• Practise NCERT questions thoroughly:
  Solve all Class 10 Maths NCERT questions multiple times, as they form the base of board exam preparation.
• Revise formulas and identities regularly:
  Keep revising important formulas in Class 10 Maths to improve speed and reduce calculation errors.
• Solve Previous Year Questions (PYQs):
  Practising CBSE Class 10 Maths PYQs helps you understand exam patterns and frequently asked questions.
• Attempt sample papers consistently:
  Solve Class 10 Maths sample papers to improve time management and get familiar with the exam format.
• Focus on important questions:
  Practise Class 10 Maths Most Important Questions (MIQs) to cover high-weightage topics effectively.