Circle inscribed

Calculate the perimeter and area of a circle inscribed in a triangle measuring 3, 4, and 5 cm.

Final Answer:

S =  3.14 cm2
o =  6.28 cm

Step-by-step explanation:

a=3 cm b=4 cm c=5 cm  c2=a2+b2 => γ=90    S1=2a b=23 4=6 cm2 o1=a+b+c=3+4+5=12 cm  r=o12 S1=122 6=1 cm  S=π r2=3.1416 12=3.14 cm2
o=2π r=2 3.1416 1=6.28 cm

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