Advertisements
Advertisements
प्रश्न
A child playing with building blocks, which are of the shape of the cubes, has built a structure as shown in Fig. 18.12 If the edge of each cube is 3 cm, find the volume of the structure built by the child.
Advertisements
उत्तर १
Volume of each cube = edge x edge x edge
`=3xx3xx3cm^3=27cm^3`
Number of cubes in the surface structure= 15
∴Volume of the structure = `27xx15cm^3`
`=405cm^3`
उत्तर २
We have,
Number of boxes (n) = 15
In the above structure we need to find the total volume
Edge of each cube (a) = 3 cm
Volume of each cube(v) = a3
=33
= 27 cm3
Hence, total volume of the structure,
`V=n xx v`
`=15 xx27`
`=405 cm^3 `
The volume of the structure built by the child is.405 cm3
APPEARS IN
संबंधित प्रश्न
A village, having a population of 4000, requires 150 litres of water per head per day. It has a tank measuring 20 m × 15 m × 6 m. For how many days will the water of this tank last?
A godown measures 60 m × 25 m × 15 m. Find the maximum number of wooden crates each measuring 1.5 m × 1.25 m × 0.5 m that can be stored in the godown.
To make an open fish tank, a glass sheet of 2 mm gauge is used. The outer length, breadth and height of the tank are 60.4 cm, 40.4 cm and 40.2 cm respectively. How much maximum volume of water will be contained in it?
Find the volume of a cuboid whose dimensions are length = 60 m, breadth = 25 m, height = 1.5 m
A metallic cube with side 15 cm is melted and formed into a cuboid. If the length and height of the cuboid is 25 cm and 9 cm respectively then find the breadth of the cuboid
The volume of a cuboid is 660 cm3 and the area of the base is 33 cm2. Its height is
The surface area of the three coterminus faces of a cuboid are 6, 15 and 10 cm2 respectively. The volume of the cuboid is ______.
A truck carrying 7.8 m3 concrete arrives at a job site. A platform of width 5 m and height 2 m is being contructed at the site. Find the length of the platform, constructed from the amount of concrete on the truck?
A swimming pool is 200 m by 50 m and has an average depth of 2 m. By the end of a summer day, the water level drops by 2 cm. How many cubic metres of water is lost on the day?
How many bricks of size 22 cm × 10 cm × 7 cm are required to construct a wall 11 m long, 3.5 m high and 40 cm thick, if the cement and sand used in the construction occupy (1/10)th part of the wall?
