from math import*
a = 1
b = 1
c = 1
keruletFele = (a + b + c) / 2
terulet = sqrt(keruletFele*(keruletFele - a)*(keruletFele - b)*(keruletFele - c))
print ("A haromszog kerulete:",keruletFele * 2)
print ("A haromszog terulete:",terulet)
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