ICSE maths class-9 | Surface area and volume of 3D Solids l Kriston publication's l DBE l Ex-20A
Maths with Rahul
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ICSE maths class-9 | Surface area and volume of 3D Solids l Kriston publication's l DBE l Ex-20A
54 просмотра · 2 нед. назад
Maths with Rahul
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54 просмотра · 2 нед. назад
In this video, we will study Surface Area and Volume of 3D Solids – ICSE Class 9 Mathematics, focusing on Cubes and Cuboids. This chapter covers important formulas and numerical problems related to curved/lateral surface area, total surface area, volume, and diagonal of these three-dimensional solids.
Formulas for a Cube (Side = a)
Lateral Surface Area (LSA) = 4a²
Total Surface Area (TSA) = 6a²
Volume = a³
Diagonal = a√3
Formulas for a Cuboid (Length = l, Breadth = b, Height = h)
Lateral Surface Area (LSA) = 2h(l + b)
Total Surface Area (TSA) = 2(lb + bh + hl)
Volume = l × b × h
Diagonal = √(l² + b² + h²)
Through step-by-step solutions, we will learn how to apply these formulas to solve different types of numerical problems based on cubes and cuboids. This video will help students understand the concepts, use the correct formulas, and improve their problem-solving skills for ICSE Class 9 Mathematics examinations.
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