Advertisements
Advertisements
प्रश्न
The volume of a cube whose surface area is 96 cm2, is
विकल्प
16`sqrt(2) cm^3`
32 cm3
64 cm3
216 cm3
उत्तर
Let,
a → Side of the cube
V → Volume of the cube
A → Surface area of the cube
We have,
`A = 96 cm^2`
6a^2 = 96` { Since ,A = 6a2 }
a = 4 cm
So,
V = a3
=43
=64 cm3
Thus, volume of the cube is 64 cm3.
APPEARS IN
संबंधित प्रश्न
A small indoor greenhouse (herbarium) is made entirely of glass panes (including base) held together with tape. It is 30 cm long, 25 cm wide and 25 cm high. How much of tape is needed for all the 12 edges?
Find the volume of a cuboid whose length =1.2 m, breadth = 30 cm, height = 15 cm.
A cuboidal block of silver is 9 cm long, 4 cm broad and 3.5 cm in height. From it, beads of volume 1.5 cm3 each are to be made. Find the number of beads that can be made from the block.
A village, having a population of 4000, requires 150 litres water per head per day. It has a tank which is 20 m long, 15 m broad and 6 m high. For how many days will the water of this tank last?
Three cubes of each side 4 cm are joined end to end. Find the surface area of the resulting cuboid.
The total surface area of a cylinder is 6512 cm2 and the circumference of its bases is 88 cm. Find:
(i) its radius
(ii) its volume
Find the volume of wood used in making a closed box 22 cm by 18 cm by 14 cm, using a 1 cm thick wood. Also, find the cost of wood required to make the box at the rate of Rs. 5 per cm³ How many cubes of side 2 cm can be placed in the box?
The surface area of a cuboid formed by joining face to face 3 cubes of side x is 3 times the surface area of a cube of side x.
