Odpowiedź:
a) (8×9)/2=36
b) (4×6,2)/2=12,4
c)(5×7)/2=17,5
d)(13×3)/2=19,5
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Odpowiedź:
a) (8×9)/2=36
b) (4×6,2)/2=12,4
c)(5×7)/2=17,5
d)(13×3)/2=19,5