Odpowiedź:
P=½d1•d2
P=30cm²
d1=6cm
d2=?
Podstawiamy do wzoru:
30=½•6•d2
30=3d2
d2=30:3
d2=10cm
Odp.B
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Odpowiedź:
P=½d1•d2
P=30cm²
d1=6cm
d2=?
Podstawiamy do wzoru:
30=½•6•d2
30=3d2
d2=30:3
d2=10cm
Odp.B