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P = a x a
P = 6 x 6
P= 36 cm²
P całkowitwe = 36 x 6
P = 216 cm²
a - dł. boku = 6√2
Pp= (6√2)²
Pp = 72 cm ²
w szescianie jest s ścian czyli
Pc = 6 × 72 = 432 cm ²
d=a√3
a√3=6 /:√3
a=6/√3 * √3/√3
a=2√3 cm
Ppc=6a²
Ppc=6*(2√3)²
Ppc=6*4*3
Ppc=72 cm²