Question

Please help asap 35 pts

Answer 1

Let original side length = x Then:-

(x + 7)^2 = 169

x + 7 = 13
x = 6 m

Answer 2

D. 6 meters. If you add 7 meters to that, it becomes 13 meters for all sides. 13^2=169m^2. So, 6 meters was the original length.