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a²+b²=c²
R=c/2
a=12
b=5
c=13
Wzór na promień okręgu wpisanego:
r= a*b / a+b+c
r=60/30=2
promień wynosi 2 :D
:)
R=C/2
A=12 B=5 C=13
R=60/30=2
ODP = 2