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BC atau a = 5
AC atau b = 7
cos A =
cos A =
cos A =
cos A =
cos A = 0,785714
A =
cos B =
cos B =
cos B =
cos B =
cos B =
B =
C =
C =
C =
Jadi, sudut A = , sudut B = , dan sudut C =
soal b dan c caranya juga sama, agar lebih mudah di pahami, gambarlah segitiganya terlebih dahulu. semoga membantu :)