Question

the diameter of a roller is 1.2 m and it is 2.4 m long. How much area will it cover in 1 resolution?​

Answer 1

Step-by-step explanation:

D of roller = 1.2 m

R = 0.6 m

H = 2.4 m

CSA of roller in 1 revolution = 2πRH = 2*22/7*0.6*2.4

= 63.36/7 m²

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Answer 2

Answer:

Step-by-step explanation:

Diameter = 1.2

Radius = 1.2/2 = 0.6m

Length ( Height ) = 2.4m

C.S.A of the roller = The area covered by it in 1 resolution

C.S.A of the roller = 2πrh = 2 * 22/7 * 60 * 240 sq.cms

                              = 9.0514 sq.meters