the diameter of a roller is 1.4 and its is 2cm long .the it will cover in 5 revoluation
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The diameter of a garden roller is 1.4 m and it is 2m long. How much area will it cover in 50 revolutions.
✏ Area it will cover in 5 revolutions = ❓
✏ Radius, r =
✏ r =
✏ r = 0.7 m
= 2Πrh
= 2 × × 0.7 × 2
= 8.8 m sq.
= 8.8 m sq.
= 8.8 × 50
= 440 m sq.
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