Pole trójkąta:
ah/2
a=5 cm
h=6 cm
5*6=30 cm
30 cm : 2 =15 cm
P= 15 cm
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Pole trójkąta:
ah/2
a=5 cm
h=6 cm
5*6=30 cm
30 cm : 2 =15 cm
P= 15 cm