Respuesta :

Answer:

semi circle

At = (1/2)bh = (1/2)(12)(12) = 72mi2

Asemi = (3/4)π(12)2 = (3/4)(144)π = 108π = 339.292mi2

At + Asemi = 72 + 339.292 = 411.292--->411.3mi2