The diameter of a garden roller is 1.4 m and it is 4 m long. How much area will it cover in 5 revolutions ? (use Ï€ = 22â„7)
Choose the correct choice from the following answers:
A) 80 m2	B) 84 m2	C) 88 m2	D) 86 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— 4 = 88 m2   Answer 88 m2
<result>C</result>
The diameter of a garden roller is 1.4 m and it is 4 m long. How much area will it cover in 5 revolutions ? (use Ï€ = 22â„7)