1. Find the length of the rectangle
A= 63 square ft.
w= 7 ft.
A= l x w
63= l x 7
(Think: If l= 63/7)
l= 9
So the length is 9 ft.
2. Find the width of the rectangle
P= 30in.
l=11in.
P=2l+2w
30=2(11) + 2w
30=22+2w (Think: If 30=22+2w, then 2w=30-22)
2w=12 (Think: If 2 x w=8, then w= 8/2)
w=4
So the width is 4 inches