Triangle SSS

Calculate perimeter and area of ​​a triangle ABC, if a=53, b=46 and c=40.

Correct result:

p =  139
T =  891.619


a=53 b=46 c=40  p=a+b+c=53+46+40=139
s=p/2=139/2=1392=69.5  T=s (sa) (sb) (sc)=69.5 (69.553) (69.546) (69.540)=891.619

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