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Chapter 15 of 26
Formula Sheet

Circles — Formula Sheet

NIOS · Class 10 · Maths

4 formulas from Circles (NIOS Class 10 Maths) on one page, grouped by topic. Part of the NIOS Class 10 Maths syllabus.

36 questions24 flashcards4 formulas & key relations5 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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4 Entries · 2 Sections

Formulas and Key Relations

1) Basic Terms

d = 2r

C = 2πr

C / d = π

Key relations

It is given by C = 2\pi r, and the ratio C/d is constant and equals \pi.

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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 and Related Terms, Arcs, Semicircle, and Angle Measure, Concentric Circles and Congruent Circles, Important Theorems on Chords and Arcs. Study these first, then practise questions on each for the NIOS Class 10 board exam.
How many formulas are in Circles?
This sheet lists 4 formulas from Circles, grouped by topic. Learn what each symbol stands for so you can apply the formula, not just recall it.
How should I revise Circles for the NIOS Class 10 board exam?
Learn the core ideas first, then work through the 36 practice questions on Circles. Revise 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.

More resources for Circles

All NIOS Class 10 Maths Formula Sheet

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