The area of the moulding is;
[tex]18\frac{11}{40}in^2[/tex]
Here, we want to get the area of the moulding
From the question, we are told that the 80% of the frame is a glass photo
What this mean is that 20% of the picture frame will be that of the moulding
Mathematically, by calculating 20% of the area of the frame, we get the area of the moulding
As we can see that the frame is a rectangular shape, the area is the product of its length and its width
We have this as;
[tex]\begin{gathered} 10\frac{3}{4}\times8\frac{1}{2} \\ =\text{ }\frac{43}{4}\times\frac{17}{2}\text{ = }\frac{731}{8\text{ }}in^2 \end{gathered}[/tex]
The area of the moulding is 20% of this which is the same as one-fifth or 1/5
we have this as;
[tex]\begin{gathered} \frac{731}{8}\text{ divided by 5} \\ \\ =\text{ }\frac{731}{8}\text{ }\times\text{ }\frac{1}{5}\text{ = }\frac{731}{40}\text{ = 18}\frac{11}{40\text{ }}\text{ square inches} \end{gathered}[/tex]