the diameter of a garden roller is 1.4 m and it is 2 m long . how much area will it cover in 5 revolutions ? ( use π = 22 ⁄ 7 )
"required area covered in 5 revolutions = 5 × 2 π rh = 5 × 2 × 22 ⁄ 7 × 0.7 × 2 = 44 m 2 answer b"
multiply(5, multiply(multiply(multiply(2, divide(22, 7)), divide(1.4, 2)), 2))