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Chapter 15 of 26
Formula Sheet

Circles

NIOS · Class 10 · Maths

All formulas from Circles in NIOS Class 10 Maths. Key equations, constants, and identities for board exam preparation.

36 questions24 flashcards5 concepts

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A comprehensive labeled diagram illustrating the various parts and terms associated with a circle, including center, radius, diameter, chord, arc (minor and major), sector, segment, interior, exterior
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3 Formulas · 1 Sections

Formulas

1) Basic Terms

d = 2r

C = 2πr

C / d = π

Full sheet with units and worked examples

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Frequently Asked Questions

What are the important topics in Circles for NIOS Class 10 Maths?
Key topics in Circles include Circle Components and Properties Overview, Circle Concepts Overview, Circle Concepts Overview. These are the concepts NIOS Class 10 examiners draw on most — study them first, then practise related questions.
How to score full marks in Circles — NIOS Class 10 Maths?
Understand the core concepts first, then work through the 36 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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Get the full Circles chapter — for free.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan for NIOS Class 10 Maths.