Math, asked by isa44, 1 year ago

a rectangular sheet of paper 30 cm into 18 cm can be transferred into covered surface of a right circular cylinder in two ways by Rolling the paper along its leg or by Rolling it along its breadth find the ratio of volume of two cylinder has formed

Answers

Answered by Sanghavi360
1

Answer:

Step-by-step explanation:

HEY MATE... HOPE THIS HELPS YOU

Case1: when the sheet is folded along its length :

In this case, it forms a cylinder having height h1=18 cm and the circumference of its base equal to 30 cm.

Let the radius of its base be r1. Then,

2pi r1=30

r1=15/pi.

V1=pi r^2 h=pi*(15/pi)^2 cm3=4050/pi.cm3

Case.2

When the sheet folded along its breadth :

Heights h2=30cm and the circumference of its base equal to 18cm.

Let the radius be r2. Then,

2pi r2=18=(9/pi)

V2=pi r^2 h=(pi*(9/11)^2) cm^3 =2430/pi cm^3.

V1/v2=(4050/pi*pi/2430)=4050/2430=5/3

Ans.5:3.

Read more on Brainly.in - https://brainly.in/question/1366868#readmore

Similar questions