Find the arc length of a sector whose radius is 42 cm and whose central angle is 60^o is

The arc length of a sector is 66 cm and the central angle is 30^o. Then its radius is

A closed box 12 cm x 10 cm x 8 cm is to be painted from outside.The area to be painted is

The total surface area of a cube whose volume is 1000 cu.cm is

A cuboidal water tank is 6 m long, 5 m wide and 4.5 m deep.How many litres of water can it hold?

The paint in a certain container is sufficient to paint on area equal to 9.375 sq.m.How many bricks of dimension
22.5 cm x 10 cm x 7.5 cm can be painted out of this container.

The central angle of a quadrant of a circle is

A closed iron tank 12 m long,9 m wide and 4 m deep is to be made. The cost of iron sheet used
at the rate of Rs.5 per meter sheet being 2 m wide is

The lateral surface area of a cuboid of length 80 cm,breadth 40 cm and height 20 cm is

The volume of a cuboid is 440 cu.cm and the area of its base is 88 cm².Its height is