Respuesta :
altura =x
base =2x
peri = 2x+x+2x+x =30
peri =6x =30
x=30/6=5cm
altura =2*5=10
3+w =b
w=b-3
base =2x
peri = 2x+x+2x+x =30
peri =6x =30
x=30/6=5cm
altura =2*5=10
3+w =b
w=b-3