The diameter of garden roller is 1.4 m and 2 m long. How much area will it cover in 5 complete revolutions?
Answers
Answered by
3
Answer:
Diameter of the roller = d = 1.4 m
Radius ( r ) = d/2 = 1.4/2 = 0.7m
Length of the roller = ( h ) = 2 m
If the roller complete one revolution
Then the area covered = curved surface area of the roller
= 2πrh
Area covered in 5 revolutions
= 5 × 2πrh
= 10 × 22/7 × 0.7 × 2
= 44 square meters
Step-by-step explanation:
Answered by
2
Step-by-step explanation:
The garden roller is in cylindrical shape.
Diameter = 1.4 m
Radius = d/2 = 1.4/2 = 0.7m
Length = Height of roller = 2m
Curve surface area of roller = Curved surface area of cylinder.
Curve surface area of roller = 2πrh
= 2 × 22/7 × 0.7 × 2
= 44 × 0.1 × 2
= 88 × 0.1
= 8.8 m
Area covered in 5 revolutions = 8.8 × 5 = 44m
Hope it will help you.
Please follow me and mark me as the brainliest
Similar questions