Odpowiedź:
a) P=a×b
P= 4,5×6=27
P=27cm²
b) P=½×a×h
P=½×5×7=17,5
P=17,5cm²
c) P=½×(a+b)×h
P=½×10×5=25
P=25cm²
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Odpowiedź:
a) P=a×b
P= 4,5×6=27
P=27cm²
b) P=½×a×h
P=½×5×7=17,5
P=17,5cm²
c) P=½×(a+b)×h
P=½×10×5=25
P=25cm²