Respuesta :

Answer:

below

Step-by-step explanation:

longest side = x+ x/2 + 11-×= 54

×/2 = 54-11

×=21.5 (longest side)

longest side = 21.5 ft

second side = 21.5 / 2 = ​10.75 ft

third side = 21.5 - 11 = 10.5 ft