zmierz przekątne rombu oznacz je literami e i f oblicz pola rombów.
miara to 2,3 cm .
P= 1/2 e*f
e=2cm
f=3cm
P= 1/2 * 2*3
P=3cm2
1/2 - jedna druga
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P= 1/2 e*f
e=2cm
f=3cm
P= 1/2 * 2*3
P=3cm2
1/2 - jedna druga