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Chapter 12 of 14
Flashcards

Surface Areas and Volumes

Madhya Pradesh Board · Class 10 · Mathematics

Flashcards for Surface Areas and Volumes — Madhya Pradesh Board Class 10 Mathematics. Quick Q&A cards covering key concepts, definitions, and formulas.

57 questions20 flashcards4 concepts
20 Flashcards
Card 1Basic Concepts

What are the basic solids that we combine to form composite solids?

Answer

The basic solids are: Cuboid, Cone, Cylinder, Sphere, and Hemisphere. These can be combined in various ways to create composite shapes like containers, toys, and monuments.

Card 2Basic Concepts

What does TSA and CSA stand for in the context of surface areas?

Answer

TSA = Total Surface Area (includes all surfaces of a solid) CSA = Curved Surface Area (includes only the curved surfaces, excluding flat bases)

Card 3Surface Area Calculations

How do we find the total surface area of a composite solid?

Answer

For composite solids, TSA = Sum of curved surface areas of individual components. We don't include the surfaces that are joined together (hidden surfaces). Example: For cylinder with hemispheres at en

Card 4Surface Area Calculations

A container is made of a cylinder with hemispheres at both ends. Write the formula for its total surface area.

Answer

TSA = CSA of cylinder + CSA of 2 hemispheres TSA = 2πrh + 2 × 2πr² TSA = 2πrh + 4πr² TSA = 2πr(h + 2r) where r = radius and h = height of cylindrical part

Card 5Surface Area Calculations

What is the TSA of a toy made by joining a cone and a hemisphere at their bases?

Answer

TSA = CSA of cone + CSA of hemisphere TSA = πrl + 2πr² where r = common radius of base, l = slant height of cone Note: The flat circular bases are not included as they are joined together.

Card 6Worked Examples

Find the TSA of a solid consisting of a cylinder surmounted by a cone, both having radius 7 cm. Height of cylinder = 10 cm, height of cone = 6 cm.

Answer

Given: r = 7 cm, h₁ = 10 cm (cylinder), h₂ = 6 cm (cone) Slant height of cone, l = √(r² + h₂²) = √(49 + 36) = √85 cm TSA = CSA of cylinder + CSA of cone + Area of base TSA = 2πrh₁ + πrl + πr² TSA = 2π

Card 7Volume Calculations

How do we calculate the volume of composite solids?

Answer

Volume of composite solid = Sum of volumes of individual components Unlike surface area, we simply add all the volumes because no volume is lost when joining solids. Example: Volume of cylinder with h

Card 8Volume Calculations

Write the volume formula for a container made of a cylinder with hemispheres at both ends.

Answer

Volume = Volume of cylinder + Volume of 2 hemispheres Volume = πr²h + 2 × (2/3)πr³ Volume = πr²h + (4/3)πr³ Volume = πr²(h + 4r/3) where r = radius and h = height of cylindrical part

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Frequently Asked Questions

What are the important topics in Surface Areas and Volumes for Madhya Pradesh Board Class 10 Mathematics?

Surface Areas and Volumes covers several key topics that are frequently asked in Madhya Pradesh Board Class 10 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.

Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision before the exam.

There are 20 flashcards for Surface Areas and Volumes covering key definitions, formulas, and concepts. Use them daily for 10–15 minutes for best results.

Sources & Official References

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