Jawabanmu

Jawaban paling cerdas!
2014-03-11T13:39:52+07:00
A. Luas segitiga ABC
L = 1/2 AB.BC
L = 1/2.8.9
L = 36 CM^2

b. Keliling segitiga ABC
K = AB + BC + AC
K = 8 + 9 + √145
K = 8 + 9 + 12,04
K = 29,04 cm

c. Pnjang jari" lngkaran dlam segitiga ABC.
s = 1/2 K
s = 1/2.29,04 cm
s = 14,52 cm

r = L/s
r = 36 cm^2/14,52 cm
r = 2,48 cm
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