A roller has a diameter of 0.5 m and a length of 1.5 m find the number of revolutions has to make to cover an area of 264 square metre
Answers
Answered by
63
hello frnd!
here's ur answer...
given diameter=0.5m
therefore radius=0.5/2
=0.25m
height of the roller=1.5m
CSA of the roller=2πrh
=2×3.14×0.25×1.5
=2.355m²
no. of revolutions to cover 264m²=264/2.355
=112.1
hence, it will take 112.1 revolutions to cover 264m²
hope this helps...
here's ur answer...
given diameter=0.5m
therefore radius=0.5/2
=0.25m
height of the roller=1.5m
CSA of the roller=2πrh
=2×3.14×0.25×1.5
=2.355m²
no. of revolutions to cover 264m²=264/2.355
=112.1
hence, it will take 112.1 revolutions to cover 264m²
hope this helps...
Answered by
28
112 Revolution required to cover an area of 264 m²
Step-by-step explanation:
A roller has a diameter of 0.5 m
=> Circumference = π * Diameter = 0.5π m
Circumference = 1 revolution = 0.5π m
Length = 1.5 m
Area Covered in 1 revolution = 0.5π * 1.5 m²
Total Area to be covered = 264 m²
Number of Revolution required : 264/(0.5π * 1.5)
using π = 22/7
= 264* 7 /(0.5 * 22 * 1.5)
= 12 * 7 /(0.5 * 1.5)
= 112
112 Revolution required to cover an area of 264 m²
Learn More:
A road roller is,in the shape of cylinder having diameter 96cm and ...
https://brainly.in/question/8672169
Similar questions