Jawabanmu

2014-02-25T14:39:44+07:00
2014-02-25T14:42:35+07:00
AB = x + 11, BC = 3x - 6 dan AC = 2x + 6
K = s + s + s
113 = (x + 11) + (3x - 6) + (2x + 6)
113 = x + 3x + 2x + 11 -6 + 6
113 = 6x + 11
113 - 11 = 6x
102 = 6x
x = 102 / 6 = 17

jd untuk sisi AB
AB = x + 11
=17 + 11 = 28

untuk sisi BC
BC = 3x - 6 = 3(17) - 6 = 45
untuk sisi AC = 2x + 6 = 2(17) + 6 = 40