a cylindrical roller is used to level a rectangular playground. the lenght of the roller is 3.5m and its diameter is 2.8m. is the roller rolls over 200 times to completely cover the playground. find the area of the playground.
Answers
Answered by
16
hii!!
here's ur answer frnd...
diameter=2.8m
therefore radius=1.4m
CSA of the roller=2πrh
=2×22/7×1.4×2.8
=172.48/7
=24.64m²
area of the playground=24.54×200
=4928m²
hope this helps u...
:)
here's ur answer frnd...
diameter=2.8m
therefore radius=1.4m
CSA of the roller=2πrh
=2×22/7×1.4×2.8
=172.48/7
=24.64m²
area of the playground=24.54×200
=4928m²
hope this helps u...
:)
Answered by
1
The answer is 4928m^2
Similar questions
Math,
7 months ago
Computer Science,
7 months ago
Social Sciences,
1 year ago
Math,
1 year ago
Science,
1 year ago