3. The radius of a road roller is 84 cm and its length is 1.4 m. How m

1.	3. The radius of a road roller is 84 cm and its length is 1.4 m. How much area ofthe ground will it press in 500 revolutions?(1) 2640 m2 (2) 3696 m2 (3) 3520 m2 (4) 2560 m2d than cast into small spherical
Answer» Curved surface area=2πrh=2(22/7)(84/100)(14/10)=7.39m^2 In 500 revolutions, area pressed=500*7.39=3696m^2 Option 2 is correct please give me live this example

3. The radius of a road roller is 84 cm and its length is 1.4 m. How much area ofthe ground will it press in 500 revolutions?(1) 2640 m2 (2) 3696 m2 (3) 3520 m2 (4) 2560 m2d than cast into small spherical

Answer»

Curved surface area=2πrh=2(22/7)(84/100)(14/10)=7.39m^2

In 500 revolutions, area pressed=500*7.39=3696m^2

Option 2 is correct

please give me live this example