Question

follow the steps to find the surface area of the cube. what is the area of one side? one side: ? total sa:

Explanation:

Step1: Recall area - formula for a square

The area of a square (a side of a cube) is $A = s^2$, where $s$ is the side - length of the square. Given $s = 7$ cm.
$A=s^2=7\times7 = 49$ cm$^2$

Step2: Recall the number of sides of a cube

A cube has 6 equal - sized square faces.

Step3: Calculate the total surface area

The total surface area (SA) of a cube is the area of one side times 6. So $SA = 6\times A$. Since $A = 49$ cm$^2$, then $SA=6\times49 = 294$ cm$^2$.

Answer:

One side: 49 cm$^2$
Total SA: 294 cm$^2$