The diameter of a garden roller is 1.4 m and itis 2 m long. Find the m – InterviewSolution

1.

The diameter of a garden roller is 1.4 m and itis 2 m long. Find the maximum area coveredby it in 50 revolutions?

Answer»

Diameter = 1.4 m r = d/2 r = 1.4/2r = 0.7m

Curved surface area of cyclinder= 2 * 22/7 * r^2

= 2 * 22/7 * 0.7 * 0.7

= 8.8 m^2

No of revolution = 50

Therefore = 8.8 * 50

= 440 m2

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