Respuesta :

Answer:

bces

Step-by-step explanation:

length:30ft

Step-by-step explanation:

if the perimeter is 100 than 20+20+x+x=100.

20+20=40

100-40=60

since there are two length sides, divide 60 by two and then you have your answer.

20+20+30+30=100

hope this helped