Inscribed circle

The circle inscribed in a triangle has a radius 3 cm. Express the area of the triangle using a, b, c.

Result

S = (Correct answer is: 1.5*(a+b+c)) Wrong answer

Step-by-step explanation:

r=3 cm r=2S/(a+b+c) S=1.5 (a+b+c)=32=112



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