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a.
4√3 - ten dłuższy kawałek podstawy
4 - krótszy kawałek podstawy
Obw = 4+4√3+2*4+4√2= 12 +4√3+4√2
b.
Obw = 6+6/2+3√3+3√3*√2=6+3+3√3+3√6 = 9+3√3+3√6
c.
Obw= 10/2 +10+5√3 = 15+5√3