oblicz pole trojkąta ADC (patrz rysunek) jezeli AB = 9 cm, DB= 5,5 cmi CE= 8 cm
P.S Sory za taki rysunek
P = 9 cm * 8 czm : 2 = 72 cm : 2 = 36 cm 2
P = 5,5 cm * 8 cm : 2 = 22 cm 2
36 - 22 = 14 cm 2
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P = 9 cm * 8 czm : 2 = 72 cm : 2 = 36 cm 2
P = 5,5 cm * 8 cm : 2 = 22 cm 2
36 - 22 = 14 cm 2