Question

find the surface area of this cube. be sure to include the correct unit in your answer.

Explanation:

Step1: Find the area of one face

The area of a square face of the cube is \(A = s^2\), where \(s = 7\) cm. So \(A=7\times7 = 49\) \(cm^{2}\).

Step2: Calculate the surface area of the cube

A cube has 6 faces. The surface area formula is \(SA = 6s^2\). Substitute \(s = 7\) cm into the formula: \(SA=6\times49\).

Answer:

\(294\) \(cm^{2}\)