LikhoPadho

1.  The side of a cube is 6cm. Find its surface area and its lateral area.

2.  A conference hall is 35.5 m long, 19.4 m wide and 6 m high. Its ceiling is covered with sound absorbing material. Find out how much it would cost to cover its floor with a wall to wall carpet at Rs. 78.50 per Sq.m 

3.  A cube with an edge of 7 cm and a cuboid measuring 7 cm x 4 cm x 8 cm are kept on a table which shape has more volume?

4.  The dimensions of a metal block are 2.25 m by 1.5 m by 27 cm. It is melted and recast into cubes, each of the side 45 cm. How many cubes are formed ? 

5.  If the edge of a cube is doubled, how many times will its surface area increases ?

6.  The dimensions of a cuboid are 10 cm by 9.5 cm by 8 cm. Find its volume 

7. The size of a matchbox is 4cm x 2.5 cm x 1.5 cm. What is the volume of a packet containing 144 matchboxes ? How many such packets can be place in a carton of size 1.5 m x 84 cm x 60 cm ?

8.  The surface area of a cube is 384 cm². Find its volume  

9.  A hall 8 m long, 6 m wide and 4 m high has three doors of size 1.5 m by 2m and four windows of size 1.2 m by 1 m. Find the cost of papering the walls if the wall paper is 80 cm wide and costs Rs. 6 per meter

10. Find the volume of a cuboid whose length, breadth and height are 2a, 5a and 6a is