Question

the total surface area of cube is 54 CM square what is the length of its sides

Answer 1

Answer :

The length of its edge is 3 cm.

Step-by-step explanation :

Total surface area of cube = 6 ( side )²

∴ 6 ( side )² = 54

⇒ ( side )² = 54 / 6

⇒ ( side )² = 9

⇒ side = √9

⇒ side = 3 cm

Hence, the length of the cube is 3 cm.

Answer 2

Answer:

The value of side of cube will be 3 cm.

Step-by-step explanation:

In context to question asked,

We have to determine the length of side of cube.

As per question,

We have,

Total surface area of cube = 54 Sq. cm

As we know that,

Total surface area of cube can be determined by using formula -

$TSA = 6\times side^2$

So, putting the value of TSA given in question in above formula for determining the side,

We will get,

$54 = 6 \times side^2\\=>Side^2 = \frac{54}{6} = 9\\=>Side = {\sqrt{9}} = 3 \:cm$