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96=1/2xa4xt
48=a4xt
12=axt
t =12+4
=16
maaf kalo salah
96 = 1/2a(a + 4)
96 = a^2 + 4a/2
192 = a^2 + 4a
a^2 + 4a - 192 = 0
(a + 16) (a - 12) = 0
a = -16 atau a = 12
a = - 16
t = a + 4
t = -16 + 4
t = - 12 ( tidak mungkin)
a = 12
t = a + 4
t = 12 + 4
t = 16 cm
jadi, tinggi segitiga tersebut adalah 16 cm