Question

Q2 A diameter of a garden roller is 10 km
and it is 2m long how much area it will
cover in 5 revolution
​

Answer 1

HEY MATE THIS IS YOUR ANSWER

➡➡ Radius of a garden roller (r) = 1.4 / 2 = 0.7 m

➡➡ Length of the garden roller (h) = 2 m

∴ Curved surface area of garden roller = 2πrh .

➡➡ So, the area levelled of a garden roller in one revolution is 8.8 m2.

So, the area levelled of a garden roller in one revolution is 8.8 m2. ➡➡ Now, area levelled of a garden in 5

revolutions = 8.8 x 5= 44m2

HOPE IT HELPS YOU

Answer 2

Answer:

Answer

Correct option is

A

44m

2

Area covered = Curved surface × Number of revolutions

r=

2

1.4

=0.7 m

h=2 m

Curved surface = 2πrh=2×

7

22

×0.7×2=8.8 m

2

Hence,

Area covered = 8.8×5=44 m

2