Question

A cube of side 7 cm, then its volume is
a) 334 cm
b) 433 cm
c) 343 cm
d) none​

Answer 1

Answer:

None

Step-by-step explanation:

The correct answer is d) as we can't determine the volume by just knowing the length of a side of a cube.

Answer 2

Answer:

Side of the cube = 7cm.

$\setlength{\unitlength}{4mm}\begin{picture}(10,6)\thicklines\put(0,1){\line(0,1){10}}\put(0,1){\line(1,0){10}}\put(10,1){\line(0,1){10}}\put(0,11){\line(1,0){10}}\put(0,11){\line(1,1){5}}\put(10,11){\line(1,1){5}}\put(10,1){\line(1,1){5}}\put(0,1){\line(1,1){5}}\put(5,6){\line(1,0){10}}\put(5,6){\line(0,1){10}}\put(5,16){\line(1,0){10}}\put(15,6){\line(0,1){10}}\put(4.6,-0.5){\bf\large 7cm}\put(13.5,3){\bf\large 7cm}\put(-4,5.8){\bf\large 7cm}\end{picture}$

Volume of a cube = a³ (Where 'a' is the side)

Here ,

Side(a) = 7cm.

$\implies$ Volume of the cube = 7³

$\implies$ Volume of the cube = 343 cm³.

VOLUME OF SOME  3D SHAPES

CUBE

VOLUME = a³(Where 'a' is the side)

CUBOID

VOLUME = l × b × h (length × breadth × height)

CONE

$\sf Volume = \dfrac{1}{3} \pi r^2 h$

CYLINDER

VOLUME = πr²h

SPHERE

$\sf Volume =\dfrac{4}{3 } \pi r^3$

HEMISPHERE

$\sf Volume =\dfrac{2}{3 } \pi r^3$