Odpowiedź:
a - 40mm=4cm
b - 6cm
c - 0,7dm=7cm
P= 2(ab+ac+bc)
P= 2(4×6+4×7+6×7)= 2×96 = 188cm2
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Odpowiedź:
a - 40mm=4cm
b - 6cm
c - 0,7dm=7cm
P= 2(ab+ac+bc)
P= 2(4×6+4×7+6×7)= 2×96 = 188cm2