Hey there! I’m having a bit of trouble with this one, I think I’ve been looking at this for too long. If you could give me an explanation, I would be appreciate it! Thanks in advance! This is a practice test.
The bisector of an angle of a triangle divides the opposite side into segments that are proportional to the adjacent sides ⇒ AB/BC = AD/DC 36/27 = (42-x)/x 36x = 27(42-x) 36x = 1134 - 27x 36x + 27x = 1134 63x = 1134 x = 1134/63 x = 18