Step-by-step explanation:
"bisecting" means cutting in half.
and what have the 2 halves of a whole in common ?
they are equally big.
so,
8x + 35 = 11x +23
12 = 3x
x = 4
11x + 23 = 11×4 + 23 = 44 + 23 = 67 degrees.
and that is half of the total angle.
so,
ABC = 67×2 = 134 degrees.
