CBSE Class 10 Mathematics Introduction to Trigonometry Worksheet Set D

Access the latest CBSE Class 10 Mathematics Introduction to Trigonometry Worksheet Set D. We have provided free printable Class 10 Mathematics worksheets in PDF format, specifically designed for Chapter 8 Introduction to Trigonometry. These practice sets are prepared by expert teachers following the 2025-26 syllabus and exam patterns issued by CBSE, NCERT, and KVS.

Chapter 8 Introduction to Trigonometry Mathematics Practice Worksheet for Class 10

Students should use these Class 10 Mathematics chapter-wise worksheets for daily practice to improve their conceptual understanding. This detailed test papers include important questions and solutions for Chapter 8 Introduction to Trigonometry, to help you prepare for school tests and final examination. Regular practice of these Class 10 Mathematics questions will help improve your problem-solving speed and exam accuracy for the 2026 session.

Download Class 10 Mathematics Chapter 8 Introduction to Trigonometry Worksheet PDF

 

Trignometry

Q.- Express each of the following in terms of trigonometric ratios of angles between 0º and 45º;
(i) cosec 69º + cot 69º
(ii) sin 81º + tan 81º
(iii) sin 72º + cot 72º
 
Sol.(i) We have,
cosec 69º + cot 69º
= cosec (90º – 21º) + cot (90º – 21º)
= sec 21º + tan 21º                [ cosec (90º – θ) = sec θand cot (90º –θ) = tanθ ]
 
(ii) We have,
sin 81º + tan 81º
= sin (90º – 9º) + tan (90º – 9º)
= cos 9º + cot 9º                    [ sin (90º – θ) = cos θ and tan (90º –θ) = cot θ ]
 
(iii) We have,
sin 72º + cot 72º
= sin (90º – 18º) + cot (90º – 18º)
= cos 18º + tan 18º                [ sin (90º – 18º) = cos 18º and tan (90º – 18º) = cot 18º]
 
Q.- Express sin 67° + cos 75° in terms of trigonometric ratios of angles between 0° and 45°.
 
Sol. 23 = 90 – 67 & 15 = 90 – 75
∴sin 67° + cos 75°
= sin (90 – 23)° + cos (90 – 15)°
= cos 23° + sin 15°. Ans.
 
Q.- If tan A = cot B, prove that A + B = 90°.
 
Sol.  tan A = cot B
tan A = tan (90° – B)
A = 90° – B
A + B = 90°. Proved
 

CBSE Class 10 Mathematics Trignometry Printable Worksheet Set D 1

CBSE Class 10 Mathematics Trignometry Printable Worksheet Set D 2

CBSE Class 10 Mathematics Trignometry Printable Worksheet Set D 3

 

Please click on below link to download CBSE Class 10 Mathematics Trignometry Printable Worksheet Set D

Chapter 8 Introduction to Trigonometry CBSE Class 10 Mathematics Worksheet

Students can use the Chapter 8 Introduction to Trigonometry practice sheet provided above to prepare for their upcoming school tests. This solved questions and answers follow the latest CBSE syllabus for Class 10 Mathematics. You can easily download the PDF format and solve these questions every day to improve your marks. Our expert teachers have made these from the most important topics that are always asked in your exams to help you get more marks in exams.

NCERT Based Questions and Solutions for Chapter 8 Introduction to Trigonometry

Our expert team has used the official NCERT book for Class 10 Mathematics to create this practice material for students. After solving the questions our teachers have also suggested to study the NCERT solutions  which will help you to understand the best way to solve problems in Mathematics. You can get all this study material for free on studiestoday.com.

Extra Practice for Mathematics

To get the best results in Class 10, students should try the Mathematics MCQ Test for this chapter. We have also provided printable assignments for Class 10 Mathematics on our website. Regular practice will help you feel more confident and get higher marks in CBSE examinations.

Where can I download latest CBSE Practice worksheets for Class 10 Mathematics Chapter 8 Introduction to Trigonometry

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Yes, studiestoday.com provides all the latest Class 10 Mathematics Chapter 8 Introduction to Trigonometry test practice sheets with answers based on the latest books for the current academic session