Answer:
28.39
Step-by-step explanation:
3 : 3√3 = 3√3 = a
a = (3√3)^2/3 = 27/3 = 9
hypotenuse = 9 + 3 = 12
3 : b = b : 12
b^2 = 36
b = 6
9 : c = c : 12
c^2 = 108
c = 10,392305
Perimeter = 10,392305 + 12 + 6 = 28,392305
