Odpowiedź:
P∆= a•h/2
a) 4•3,5/2=14/2=7cm²
b) 3•3,5=10,5/2=5,25cm²
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Odpowiedź:
P∆= a•h/2
a) 4•3,5/2=14/2=7cm²
b) 3•3,5=10,5/2=5,25cm²