Odpowiedź:
AB=5
CB^2= 4^2+2^2=20
CB=√20=2√5
AC^2=3^2+4^2=25
AC=√25=5
Obw= 5+5+2√5=10+2√5
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Odpowiedź:
AB=5
CB^2= 4^2+2^2=20
CB=√20=2√5
AC^2=3^2+4^2=25
AC=√25=5
Obw= 5+5+2√5=10+2√5