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a√3= 4√6 /:√3
a= 4√6/√3
a=4√2
d- przekątną kwadratu ( podstawy sześcianu)
d- a√2
Pb= a*d
Pb= 4√2* (4√2*√2)
Pb= 4√2*(4*2)
Pb= 4√2*8= 32√2