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Pole AED= (5*5)/2=12,5 BO WZÓR TO (A*H)/2
Pole DEC= (10*2,5)/2 -----TEN SAM WZÓR----
LICZĘ NA NAJ
Pabcd=5*10
Pabcd=50 j²
Paed=1/2*a*h
a=5 j
h=1/2*10
h=5 j
Paed=1/2*5*5
Paed= 12 1/2 j²
Pdec=1/2*a*h
a=10 j
h= 1/2*5
h= 2,5 j
Pdec=1/2*10*2,5
Pdec= 12 1/2 j²