The diameter of garden roller is 1.4m and it is 2m long. How much area will it cover in 15 revolutions.(π=22/7).
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Answer:
132m²
Step-by-step explanation:
diameter(D)= 1.4m
radius(r)=d/2
=0.7m
height=2m
Area covered in 1 revolution= Lateral surface area
=2πrh
=2×22/7×0.7×2
=2×22× 7 ×2
7 10
=4×2.2
=8.8m²
area covered in 15 revolutions = 15×8.8 m²
=132.0m²
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