Direction: Write True or False and justify your answer in each of the following :
If the length of the diagonal of a cube is cm, then the length of the edge of the cube is 3 cm.
Answer: False
We know that the diagonal of cube with side a is given as
Now in the question, the diagonal of the cube is cm
So we can write
Which gives,
So the side of cube is 6 cm
Thus, the statement is false.