The diameter of a garden roller is 1.4 m and it is 3 m long. How much area will it cover in 5 revolutions ? (use Ï€ = 22â„7)  Pick one: A) 60 m2 B) 64 m2 C) 68 m2 D) 66 m2 E) None of these
Required area covered in 5 revolutions   = 5 Ã— 2Ï€rh = 5 Ã— 2 Ã— 22â„7 Ã— 0.7 Ã— 3 = 66 m2   Answer 66 m2
<result>D</result>
The diameter of a garden roller is 1.4 m and it is 3 m long. How much area will it cover in 5 revolutions ? (use Ï€ = 22â„7)