Answer:
5600 square feets
Step-by-step explanation:
Let [tex]l, b[/tex] denote length and breadth of the rectangular shaped bedroom.
The total distance around Regina rectangular shaped bedroom is 300 feet.
[tex]2(l+b)=300\\l+b=150[/tex]
The length of the room is 80 feet.
Put [tex]l=80[/tex]
[tex]80+b=150[/tex]
[tex]b=150-80=70[/tex] feets
Area of the rectangular shaped bedroom [tex]=lb=80(70)=5600[/tex] square feets.
