Question

If the sum of lengths of the edges of a cube is 108 cm, then the side of a cube is:
A. 5 cm
B.9 cm
C. 12 cm
D.7 cm​

Answer 1

Answer:

answer is b) 9 ✅

Step-by-step explanation:

b) 9

how does 9 come

108➗12

as cube has 12 edges

hope it is helpful ❤️

Answer 2

Answer:

Length of the diagonal of a Cuboid =  

(l  

2

+b  

2

+h  

2

)

​  

.

For a cube, l=b=h

So, D=  

(l  

2

+l  

2

+l  

2

)

​  

=l  

(

​  

3)

Length of the diagonal =6  

3

​  

 cm  

We need to find edge of cube.

D=  

3

​  

l

⇒  

3

​  

l=6  

3

​  

 

⇒l=6

Therefore, edge = 6 cm

Step-by-step explanation: