Advertisements
Advertisements
प्रश्न
A wooden box (including the lid) has external dimensions 40 cm by 34 cm by 30 cm. If the wood is 1 cm thick, how many cm3 of wood is used in it?
Advertisements
उत्तर
External dimensions of wooden box are 40 cm × 34 cm × 30 cm.
Since, the wood is 1 cm thick, it means the internal dimensions will be (40 – 2) cm × (34 – 2) cm × (30 – 2) cm = 38 cm × 32 cm × 28 cm
∴ Wood used for the box = Volume of the wooden box with external dimensions – Volume of the wooden box with internal dimensions
= 40 × 34 × 30 – 38 × 32 × 28
= 40800 – 34048
= 6752 cm3
APPEARS IN
संबंधित प्रश्न
What will be the volume of a cube having length of edge 7.5 cm?
Find the volume of a cube whose side is 3.5 m
A cubical milk tank can hold 125000 litres of milk. Find the length of its side in metres
The capacity of a water tank of dimensions 10 m × 5 m × 1.5 m is
How many sack of dimension 15 cm × 45 cm × 90 cm filled with rice can be kept in a room of dimension 3 m × 18 m × 9 m
How many centimetre cubes can be arranged along its:
Length? ______
Width? ______
Height? ______
Answer Thimpu's questions:
- To make the first layer on the table how many cm cubes will I use? ______
- How many such layers will I need to make a cube? ______
Ganesh and Dinga want to pack 4000-centimeter cubes inboxes. These are to be sent to a school. There are three different boxes available for packing.
Use Ganesh's method and write:
- _____ centimeter cubes can be arranged in box B.
- _____ centimeter cubes can be arranged in box C.
- So _____ centimeter cubes in all can be packed in the three boxes.
Two cubes have volumes in the ratio 1 : 64. The ratio of the area of a face of first cube to that of the other is ______.
How many cubes each of side 0.5 cm are required to build a cube of volume 8 cm3?
