Jump to
- Rational Numbers
- Exponents and Powers
- Squares and Square Roots
- Cubes and Cube Roots
- Playing with Numbers
- Operation on sets Venn Diagrams
- Percentage
- Simple and Compound Interest
- Direct and Inverse Variation
- Algebraic Expressions and Identities
- Factorisation
- Linear Equations and Inequalities In one Variable
- Understanding Quadrilaterals
- Constructions of Quadrilaterals
- Circle
- Symmetry Reflection and Rotation
- Visualising Solid Shapes
- Mensuration
- Data Handling
ML Aggarwal Solutions Class 8 Mathematics Solutions for Mensuration Exercise 18.4 in Chapter 18 - Mensuration
Prev
A rectangular paper is size 22 cm × 14 cm is rolled to form a cylinder of height 14 cm, find the volume of the cylinder. (Take π = 22/7)
Answer:
Given,
Length of a rectangular paper = 22 cm and breadth = 14 cm
By rolling it a cylinder is formed whose height is 14 cm
And, the circumference of the base = 22 cm
We know that, circumference = 2πr
So, radius (r) = C/2π = (22 × 7)/(2 × 22) = 7/2 cm
Hence,
Volume of the cylinder so formed = πr2h
= 22/7 × 7/2 × 7/2 × 14
= 539cm3
Related Questions
Facebook
Whatsapp
Copy Link
Exercises
Chapters
Lido
Courses
Quick Links
Terms & Policies
Terms & Policies
Connect with us on social media!
2022 © Quality Tutorials Pvt Ltd All rights reserved