Answer:
12 1/2 inches extra wood.
Step-by-step explanation:
From the question, the measurements given for the frame are ;
Length, l = 9 1/4 in -----write as improper fraction : 37/4 in
Width, w= 14 1/2 in -------29/2 in
This should tell you that custom frame will be rectangular in shape.
Find the total perimeter of the frame which will be total length needed in inches for the frame.
P= 2{l+w}
[tex]P=2(\frac{37}{4} +\frac{29}{2} )\\\\\\P=2( \frac{95}{4} )=\frac{95}{2}[/tex]
P= 95/2 in ------total length required for the frame
Available pieces of wood are;
Two pieces of 18 in long = 2*18 = 36 in
Two pieces of 12 in long = 2*12 = 24 in
Total available length from the pieces of wood = 36 + 24 = 60 in
Extra wood available :
60/ 1 - 95/2 = 25/2 in
In mixed fraction : 25/2 = 12 1/2 inches extra wood.
