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a=4
b=6
(¹/₂ a)²+h²=b²
h²=b²-(¹/₂· a)²
h²=6²-2²=36-4=32
h=√32=4√2
Pśb=¹/₂ ·a·h
Pśb=¹/₂ ·4·4√2=8√2
Ppb=6·Pśb=48√2
podstawa to sześciokąt foremny (6 trójkątów równobocznych)
Pp=6·a²√3/4=3a²√3/2
Pp=48√3/2=24√3
Pc=Pp+Ppb
Pc=24√3+48√2