Advertisements
Advertisements
प्रश्न
Find the surface area of a cube whose volume is 216 dm3.
Advertisements
उत्तर
\[\text { Volume of the given cube = 216 }{dm}^3 \]
\[\text { We know that volume of a cube = (side ) }^3 \]
\[ \Rightarrow (\text { side ) }^3 = 216 \]
\[\text { i . e . , side = } \sqrt[3]{216} = 6 dm\]
\[ \therefore \text { Surface area of the cube = 6 }\times \text { (side ) }^2 = 6 \times (6 )^2 = 216 {dm}^2\]
संबंधित प्रश्न
Find the volume of a cube whose side is 1.2 m .
Find the volume of a cube whose surface area is 150 m2 .
Cubes A, B, C having edges 18 cm, 24 cm and 30 cm respectively are melted and moulded into a new cube D. Find the edge of the bigger cube D.
Find the length of 13.2 kg of copper wire of diameter 4 mm, when 1 cubic cm of copper weighs 8.4 gm.
Side of a cube is 4.5 cm. Find the surface area of all vertical faces and total surface area of the cube.
The internal length, breadth, and height of a box are 30 cm, 24 cm, and 15 cm. Find the largest number of cubes which can be placed inside this box if the edge of each cube is
(i) 3 cm (ii) 4 cm (iii) 5 cm
The dimensions of a solid metallic cuboid are 72 cm × 30 cm × 75 cm. It is melted and recast into identical solid metal cubes with each edge 6 cm. Find the number of cubes formed.
Also, find the cost of polishing the surfaces of all the cubes formed at the rate Rs. 150 per sq. m.
Find the T.S.A and L.S.A of the cube whose side is 7.5 cm
The lateral surface area of a cube of side 12 cm is
A cube of side 4 cm is cut into 1 cm cubes. What is the ratio of the surface areas of the original cubes and cut-out cubes?
