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 -

Question

Toppr Admin · Accepted Answer

Area covered - Curved surface -xD7- Number of revolutionsr-1-42-0-7 mh-2 mCurved surface - 2-x3C0-rh-2-xD7-227-xD7-0-7-xD7-2-8-8 m2Hence-Area covered - 8-8-xD7-5-44 m2

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 ?

Area covered = Curved surface $\times$ Number of revolutions

$r = \frac{1.4}{2} = 0.7$ $m$

$h = 2$ $m$

Curved surface = $2 π r h = 2 \times \frac{22}{7} \times 0.7 \times 2 = 8.8$ $m^{2}$

Hence,
Area covered = $8.8 \times 5 = 44$ $m^{2}$

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 ?

Area covered = Curved surface × Number of revolutionsr=1.42=0.7 mh=2 mCurved surface = 2πrh=2×227×0.7×2=8.8 m2Hence,Area covered = 8.8×5=44 m2

Area covered = Curved surface $\times$ Number of revolutions

$r = \frac{1.4}{2} = 0.7$ $m$

$h = 2$ $m$

Curved surface = $2 π r h = 2 \times \frac{22}{7} \times 0.7 \times 2 = 8.8$ $m^{2}$

Hence,
Area covered = $8.8 \times 5 = 44$ $m^{2}$