P=1/2 *e*f
P=1/2*5*8
P=20
P=½·e·f
P=½·5·8=20[j²]
Pole rombu wynosi 20 jednostek kwadratowych.
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P=1/2 *e*f
P=1/2*5*8
P=20
P=½·e·f
P=½·5·8=20[j²]
Pole rombu wynosi 20 jednostek kwadratowych.