Resposta:
a)
→A= 21m²
→L= 3,5
21:3.5 = 6m
b)
3.5 + 3.5 = 7,0
6,0 + 6,0 = 12,0
12,0 + 7,0 + 19,0
No caso 9m
Ajudei??? ^•^
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comprimento igual a 6 metros
qtde de gesso é ugyal a soma dos lados da sala
3,5 + 6,0 + 3,5 + 6,0 = 19 metros de moldura de gesso
Resposta:
a)
→A= 21m²
→L= 3,5
21:3.5 = 6m
b)
3.5 + 3.5 = 7,0
6,0 + 6,0 = 12,0
12,0 + 7,0 + 19,0
No caso 9m
Ajudei??? ^•^