Question 214485
sq#1 ___ side length = perimeter / 4 = s+9 ___ area = (side length)^2 = (s+9)^2 = s^2 + 243


s^2 + 18s + 81 = s^2 + 243


18s = 162 ___ s = 9


A = 9^2 + 243 = 324