The triangle has known all three sides: a=4.6 m, b=7.4 m, c= 3.8 m.
Calculate the area of ​this triangle.

Correct answer:

S =  7.3105 m2

Step-by-step explanation:

a=4.6 m b=7.4 m c=3.8 m  s=(a+b+c)/2=(4.6+7.4+3.8)/2=1079=7.9 m  S=s (sa) (sb) (sc)=7.9 (7.94.6) (7.97.4) (7.93.8)=7.3105 m2

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