a) 3*6:2=18:2=9cm²
b) 4*5=20cm²
c) 2*7:2=14:2=7cm²
proszę o naj
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a) 3*6:2=18:2=9cm²
b) 4*5=20cm²
c) 2*7:2=14:2=7cm²
proszę o naj