The diameter of a roller is 1.2m and it is 2.4m long .How much area will It cover in 1 revolution?
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Answer:
area covered in 1 revolution of roller = circumference of roller
radius = 0.6 m²
hieght = 2.4 m²
circumference of circle = 2 × pi × r × h
= 2 × 22÷7 × 0.6 × 2.4
= 9.0432 m²
so,
area covered in 1 revolution is 9.0432 m²
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