NCERT Solutions for Class 7 Maths Chapter 15 Visualising Solid Shapes Exercise 15.4

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NCERT Solutions for Class 7 Maths Chapter 15 Visualising Solid Shapes Exercise 15.4 PDF is provided in this article. Solid shapes are those which have length, breadth and height. Visualising solid shapes helps students understand the basic geometry of the 3D figures such as Cube, Cuboid, Cone, Cylinder, Pyramid

Volume of Cone = ⅓ πr2h

Volume of Cylinder = πr2h

Download PDF: NCERT Solutions for Class 7 Maths Chapter 15 Exercise 15.4

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Examples of Class 7 Chapter 15 Visualising Solid Shapes

Ques 1. Calculate the volume of a cone of radius 7 cm and height 21cm

Ans. We know that, 

Volume of a Cone = ⅓ πr2h

= ⅓ x 22/7 x 7 x7 x 21

Volume =1078 cu.cm

Ques 2. Calculate the Volume of a cylinder of radius 5 cm and height 14.

Ans. We know that, 

Surface area of a Cube = πr2h

= 22/7 x 5 x 5 x 14

= 440 cu.cm

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