Jeden cal ma 2,54cm , a jedna stopa to 12 cali . Ile centymetrów kwadratowych ma cal kwadratowy , a ile stopa kwadratowa ? . BŁAGAM POMÓŻCIE DAM NAJ !!
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cal=2,54cm
cal²=(2,54cm)²=6,4516cm²
st=12cal
st=12·2,54cm=30,48cm
st²=(30,48cm)²≈929cm²