Take one empty box with open up top in the form of a cube whoseeach sheet is 2 cm. Now fit cubes of edges 1 cm in it. Native the number it isclear that 8 such cubes will certainly fit in it. For this reason the volume of the box will be equalto the volume of 8 unit cubes together.

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Therefore, the volume that the cube = 8 cu cm

Note the 8 = 2 × 2 × 2

Thus, volume of a cube = side × next × next = side3

Hence, a cube has:

**(i) 6 surfaces or faces,(ii) 8 vertices,(iii) 12 edges or sides of equal length.**

Since a cube has actually all sides equal.Volume of a cube = (side × side × side) cubic units.= 1 × 1 × 1 cubic unitsSince area = next × sideVolume that a cube = (area × side) cubic units.

Solved instances on volume that a cube:

**1.** uncover the volume that cuboid by counting the variety of cubes.

**Solution:**

**Solution: **

The variety of unit cubes space 6, its volume is 6 cu cm.

**2.** Find the volume that cuboid by counting the variety of cubes.

**Solution:**

**Solution:**

The variety of cubes space 12, that volume is 12 cu cm.

**3.** find the volume of a cube who edge is 5 centimeter long.

**Solution: **

**The length of an edge = 5 cm**

**Volume that a cube = next of leaf × side of sheet × side of edge**

**Volume of a cube = 5 cm × 5 centimeter × 5 cm**

** = 125 cu cm**

** = 125 cm3**

**4.** discover the volume of a cube of next 7 cm.

**Solution:**

We know, volume of a cube = (side × next × side) cubic units.Here, next = 7 cm. = 7 × 7 × 7 = 343Therefore, volume that a cube = 343 cubic cm.

**5.** find the volume that a cube of side 13 cm.

**Solution: **

** us know, volume of a cube = (side × side × side) cubic units.Here, side = 13 cm. = 13 × 13 × 13 = 2197Therefore, volume the a cube = 2197 cubic cm.**

**6.** uncover the volume the water that have the right to be consisted of in a cubical container each of who edge measure 2 m internally.

**Solution: **

**The interior length that an leaf of the container = 2 m**

**The interior volume the the container = 2 m × 2 m × 2 m = 8 cu m**

**The volume of water the the container have the right to hold = the internal volume of the container.**

**Therefore, the forced volume the water = 8 cu m.**

**Questions and also Answers top top Cube:**

**1. Discover the volume that cubes v each edge measuring:**

(i) 5 cm

(ii) 10 m

(iii) 1.1 cm

(iv) 30 mm

(v) 4.3 m

**Answers:**

(i) 125 cu cm

(ii) 1000 cu m

(iii) 1.331 cu cm

(iv) 2700 mm

(v) 79.507 cu m

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