Question

The diameter of a roller is 2.4 m and its length is 1.68 m. If the roller moves 1000 complete
rounds in making a piece of land uniform level, then the area of the land is .please help me bhaio and bhano​

Answer 1

Step-by-step explanation:

Here,

height or length = 1.68m

diameter = 2.4m

radius = 2.4/2

= 1.2m

Now,

CSA of roller = πr^2h

= 22/7×1.2×1.2×1.68

= 7.6032

Therefore,

area covered by roller in 1000 rounds = 7.6032×1000

= 7603.2 m^2