[" 33.The external dimensions of "3" points "],[" a wooden cuboid is "12dm,6],[" dm and "8dm" .If the thickness "],[" of wood is "1dm" ,find its inner "],[" surface area."^(*)]

A metallic pipe is 0.7cm thick.Inner radius of the pipe is 3.5cm and length is 5dm. Find its total surface area.

The length, breadth and height of a cuboid are 15m, 6m and 5dm respectively. The lateral surface area of the cuboid is

External dimensions of a closed wooden box are in the ratio 5:4:3. If the cost of painting its outer surface at the rate of Rs 5 per dm^2 is Rs 11,750, find the dimensions of the box.

The length breadth and height of cuboid are 15 m, 6m and 5 dm respectively. The lateral surface area of the cuboid is

An open box is made of wood 3cm thick.Its external length,breadth and height are 1.48m,1.16m and 8.3dm. Find the cost of painting the inner surface of Rs.50 per sq.metre.