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Formula Sheet

Similarity Of Triangles

NIOS · Class 10 · Maths

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

42 questions28 flashcards5 concepts

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8 Formulas · 4 Sections

Formulas

1. Similar Objects and Similar Polygons

Two polygons are similar only if corresponding angles are equal and corresponding sides are proportional.

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2. Basic Proportionality Theorem

AD/DB = AE/EC

3. Angle Bisector Theorem

BD/DC = AB/AC

4. Criteria for Similarity of Triangles

If corresponding angles of two triangles are equal, the triangles are similar.

If corresponding sides of two triangles are proportional, the triangles are similar.

If one angle of a triangle equals one angle of another triangle and the sides containing these angles are proportional, the triangles are similar.

If △ABC ~ △DEF, then ∠A = ∠D, ∠B = ∠E, ∠C = ∠F and AB/DE = BC/EF = CA/FD.

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Frequently Asked Questions

What are the important topics in Similarity Of Triangles for NIOS Class 10 Maths?
Key topics in Similarity Of Triangles include Similarity of Triangles - Complete Concept Map, Complete Overview of Similarity of Triangles, Similarity of Triangles - Complete 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 Similarity Of Triangles — NIOS Class 10 Maths?
Understand the core concepts first, then work through the 42 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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