Скачать или смотреть Introduction to Trigonometry | Class 10 Maths-211 | LEC-04 | NIOS April 2026 | Ashutosh Sir

Welcome to Lecture 01 of Trigonometry for NIOS Class 10 (Maths-211).
In this session, you will learn the basic concepts of trigonometry, angles, ratios, and the foundation needed to score 80+ marks in the NIOS exam.

This lecture covers:
✔ What is Trigonometry?
✔ Concept of Angles (Degree & Radian)
✔ Trigonometric Ratios (sin, cos, tan etc.)
✔ Right Triangle Basics
✔ Important Terminology (Hypotenuse, Base, Perpendicular)
✔ NIOS Exam-oriented key points
✔ Practice questions for better understanding

🎯 Who Should Watch This Video?

NIOS Class 10 students (April 2026 Batch)

Students preparing for Maths-211 exam

Anyone needing a strong foundation in Trigonometry

📝 Why This Lecture Is Important?

Trigonometry is one of the highest-scoring chapters in Class 10 Maths.
Understanding basics properly helps in:
➡️ Distance & Heights problems
➡️ Geometry questions
➡️ Scientific and technical subjects later

🚀 NIOS 80+ Guarantee Series

This class is part of our Special 80+ Marks Guarantee Program for NIOS students.

🔔 Don’t Forget

✔ LIKE the video
✔ SHARE with all Class 10 NIOS students
✔ SUBSCRIBE for complete Maths-211 lectures

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