Respuesta :

musiclover10045

perimeter = 2L + 2W

L=w+2

21.2=2(w+2) +2w

21.2 = 2w+4+2w

21.2 = 4w+4

17.2 = 4w

w=4.3

l=4.3+2 =6.3

check:

6.3 +6.3+4.3+4.3 = 21.2

Answer:

1234567890

Step-by-step explanation:

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