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c² = 2,56 (1,6 * 1,6)
a² = 1,28
Pk = a²
pk = 1,28 m²
a√2=160/:√2
a= 160/√2 * √2/√2
a=160√2/4
a= 40√2
P= a²
p= (40√2)²
P= 160 * 2
P=320 cm=3,2m