Answer:
The length of the rectangle=16/45 feet
Explanation:
The area of a rectangle is given by;
A=L×W
where;
A=area of the rectangle
L=length of the rectangle
W=width of the rectangle
In our case;
A=(8/10) square feet
L=unknown
W=2 1/4 feet=9/4 feet
replacing;
8/10=l×9/4
l=8/10×4/9
l=16/45 feet
The length of the rectangle=16/45 feet