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Chapter 21 of 28
Formula Sheet

Solids — Formula Sheet

ICSE · Class 9 · Mathematics

14 formulas from Solids (ICSE Class 9 Mathematics) on one page, grouped by topic. Covers Core Ideas and Definitions, Cuboid and Cube.

42 questions28 flashcards14 formulas & key relations5 concepts

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A comparison illustrating the concept of 1-D (perimeter), 2-D (area), and 3-D (solid/volume) figures with simple geometric shapes.
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14 Entries · 5 Sections

Formulas and Key Relations

Cuboid formulas

Volume = l × b × h

Total surface area = 2(l×b + b×h + h×l)

Lateral surface area = 2(l+b) × h

Length of diagonal = √(l² + b² + h²)

Cube formulas

Volume = a×a×a = a³

Total surface area = 6a²

Lateral surface area = 4a²

Length of diagonal = √(a²+a²+a²) = a√3

Cost of an article

Cost = Rate × Quantity

Cost of petrol bought = quantity of petrol bought × rate of petrol

Cost of land bought = area of land bought × rate of land

Cost of cloth bought = length of cloth bought × rate of cloth

Total surface area of cuboid = 2(l×b + b×h + h×l)

Volume of cube = a³

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Frequently Asked Questions

What are the important topics in Solids for ICSE Class 9 Mathematics?
Key topics in Solids include Core Ideas and Definitions, Cuboid, Cube, Cost of an Article and Related Applications. Study these first, then practise questions on each for Class 9 exams.
How many formulas are in Solids?
This sheet lists 14 formulas from Solids, grouped by topic. Learn what each symbol stands for so you can apply the formula, not just recall it.
How should I revise Solids for Class 9 exams?
Learn the core ideas first, then work through the 42 practice questions on Solids. 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.

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Quizzes, flashcards, an AI doubt solver and a study plan for ICSE Class 9 Mathematics. Free to start, no card needed.