Respuesta :
you can use the distance formula d = √[(x1-x2)^2 + (y1-y2)^2]
so your distance is √[(7-4)^2 + (5-5)^2] = √9 = 3 :)
so your distance is √[(7-4)^2 + (5-5)^2] = √9 = 3 :)