1. the diameter of a roller is 112 cm and its height is 150 cm . find the area leveled by it in 500 revolutions...

2. the dimensions of a cuboid are in the ratio 5:2:1 . its volume 1250 cubic meters. what is its total surface area?

3. A metallic cuboid of dimensions 60 cm, 40cm and 20 cm is melted and made into cubes of 2 cm sides. how many such cubes can be obtained ??

4.the volume of a cube is 125 cubic cm . find the measure of its sides.

5.find the area of tin sheet required to make a cylindrical vessel with lid if its radius of the base is 14cm and height is 16 cm. find the capacity of the vessel as well .. ( capacity is same as volume)
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