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H wyliczymy z twierdzenia Pitagorasa:
H²+(2√2)²=4²
H²+8²=16² /-8
H²=8² /√
H= 2√2
Pp=4cm*4cm=16cm²
V=⅓16cm²*2√2cm
V=⅓32√2cm³
V=10⅔√2cm³