To find the area of a circular face (which is a circle), you can use the formula:
\[ \text{Area} = \pi r^2 \]
where \( r \) is the radius of the circle.
Given the radius \( r = 5 \) cm, we can calculate the area:
\[ \text{Area} = \pi (5 , \text{cm})^2 = \pi (25 , \text{cm}^2) \approx 78.54 , \text{cm}^2 \]
Thus, if you have another measurement of area, such as 20 square centimeters mentioned, it seems there's a misunderstanding because the area calculated for a circle with a 5 cm radius is approximately 78.54 square centimeters.
If the radius were different or corresponds to another value, please clarify, but based on the given radius of 5 cm, the area of each circular face is approximately 78.54 square centimeters.