The roller in a road roller which is used to level roads, resembles which geometrical shape?
Cuboid
Cone
Cylinder
Sphere
Just by observing and comparing, we can say that roller resembles the shape of the cylinder.
A road roller used for levelling a road of width 2m. It was observed that, the road roller required 25 complete revolutions to complete the levelling of road. If the diameter and length of roller is 7m and 2m respectively, then length of road is [use π = 3.14].
A road roller was used for levelling a road of width 2 m. It was observed that, the road roller required 25 complete revolutions to level the entire road. If the radius and the length of the roller is 7 m and 2 m respectively, then length of the road is ____. [Take π = 3.14].
A road roller takes 780 complete revolutions to level a road once. Find the area of the road if the diameter of a road roller is 42 cm. [2 MARKS ]