the diameter of a garden roller is 1.8m and it is 4m long. how much area will it cover in 10 revolutions?
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Answer: 226.08 m²
Step-by-step explanation:
Lateral surface area of cylinder is
given by 2πrh.
Given :
Diameter = 1.8 m
Radius = 1.8/2
= 0.9 m
Length = 4 m
LSA = 2πrh
= 2× 3.14 × 0.9 × 4
= 22.608 m²
In 10 revolutions , the area covered by the garden roller ....
= 10× 22.608
= 226.08 m²
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