Respuesta :

heavgarc
The answer is 17s + 13.7 + 3.6t.
All you need to do to find the perimeter is to add all the sides.
(7.1s+9.6) + (9.9s-1.7) + (3.6t+5.8)
(7.1s+9.9s) + (9.6-1.7+5.8) + (3.6t)
(17s) + (7.9+5.8) + (3.6t)
17s+13.7+3.6t