Answer: 60
Step-by-step explanation:
180 degrees because of the line so 180-120 = 60
12+54+131 - (12-(12))
197 -(12-12)
197-0
197
The answer is 50. First, you need to multiply 34.6 by 34.6, and multiply 15.4 by 15.4, and subtract the products which gives you 960. Next you subtract 15.4 from 34.6, giving you 19.2. Lastly, you divide 19.2 into 960 and you get 50.
Note that any two side lengths will be greater than the third remaining side. Therefore, yes these sides will form a triangle. This is called the triangle inequality theorem.
