Advertisements
Advertisements
प्रश्न
Find the volume of a cuboid whose length = 15 cm, breadth = 2.5 dm, height = 8 cm.
Advertisements
उत्तर
\[\text { In the given cuboid, we have }:\]
\[\text { length=1.5 dm }\]
\[ =1.5\times10 (1 dm = 10 cm) \]
\[ = 15 cm\]
\[\text { breadth=2.5 dm=2.5 }\times10 cm=25 cm\]
\[\text { height=8 cm }\]
\[ \therefore \text { Volume of cuboid = length }\times \text { breadth }\times \text { height }\]
\[=15\times25\times8\]
\[ {=3000 cm}^3\]
संबंधित प्रश्न
A cubical box has each edge 10 cm and another cuboidal box is 12.5 cm long, 10 cm wide and 8 cm high.
(i) Which box has the greater lateral surface area and by how much?
(ii) Which box has the smaller total surface area and by how much?
Find the height of a cuboid whose base area is 180 cm2 and volume is 900 cm3?
A 4 cm edge cube is cut into 1 cm edge cubes. Calculate the total surface area of all the small cubes.
The dimensions of a room are 12.5 m by 9 m by 7 m. There are 2 doors and 4 windows in the room; each door measures 2.5 m by 1 .2 m and each window 1 .5 m by I m. Find the cost of painting the walls at Rs. 3.50 per square metre.
Find the volume of a cuboid whose length =1.2 m, breadth = 30 cm, height = 15 cm.
If each edge of a cube, of volume V, is doubled, then the volume of the new cube is
A closed rectangular box is made of wood of 1.5 cm thickness. The exterior length and breadth are respectively 78 cm and 19 cm, and the capacity of the box is 15 cubic decimeters. Calculate the exterior height of the box.
A closed box is cuboid in shape with length = 40 cm, breadth = 30 cm and height = 50 cm. It is made of a thin metal sheet. Find the cost of metal sheet required to make 20 such boxes, if 1 m2 of metal sheet costs Rs. 45.
The diameter of a garden roller is 1.4 m and it 2 m long. Find the maximum area covered by its 50 revolutions?
In a building, there are 24 cylindrical pillars. For each pillar, the radius is 28 m, and the height is 4 m. Find the total cost of painting the curved surface area of the pillars at the rate of ₹ 8 per m2.
