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= 1/2 x 6 x 8
= 24 cm2
1/2 keliling segitiga = 1/2 ( a + b + c )
= 1/2 ( 6 +8 + 10 )
= 12 cm
r = Luas segitiga / 1/2 keliling segitiga
= 24/12
= 2 cm
L = 1/2 x alas x tinggi
= 1/2 x 6 x 8
= 24 cm2
s= 1/2 keliling Δ
= 1/2 x ( 6 + 8 + 10 )
= 1/2 x 24
= 12
r = L / s
= 24/12
= 2