Answer:
L = 11 m
Step-by-step explanation:
The perimeter is 40 m, which in turn equals 2L + 2W. With W = 9 m, we have:
40m = 2L + 2(9 m), or 40 m = 2L + 18 m, or 22 m = 2L. Then L = 11 m.
Answer:https://youtu.be/MaE19-BdilM
PLS STICK YOUR BIG.........
Step-by-step explanation:
area = S^2
so 20.25 = S^2
take square root of 20.25 for length of side
square root of 20.25 = 4.5 inches