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Describe How the Two Figures at the Right Are Alike and How They Are Different. Which Box Has Larger Lateral Surface Area? - CBSE Class 8 - Mathematics

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Question

Describe how the two figures at the right are alike and how they are different. Which box has larger lateral surface area?

Solution

Similarity between both the figures is that both have the same heights.

The difference between the two figures is that one is a cylinder and the other is a cube.

Lateral surface area of the cube = 4l2 = 4 (7 cm)2 = 196 cm2

Lateral surface area of the cylinder = 2πrh  = `(2 xx 22/7 xx 7/2 xx 7) cm^2` = 154 cm2

Hence, the cube has larger lateral surface area.

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APPEARS IN

 NCERT Solution for Mathematics Textbook for Class 8 (2018 to Current)
Chapter 11: Mensuration
Ex. 11.30 | Q: 6 | Page no. 186
Solution Describe How the Two Figures at the Right Are Alike and How They Are Different. Which Box Has Larger Lateral Surface Area? Concept: Surface Area and Volume of Cube, Cuboid and Cylinder - Concept of Cube.
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