Respuesta :
Answer:
180 degrees
Step-by-step explanation:
What we simply want to do here is to find the sum of all the angles marked by Eric as he walks around the triangular path.
From the question, we are told that he walks around and made a complete circuit, marking a specific angle at each corner. So what this translates to is that at each corner, we have an angle, with the three angles marked forming a triangle.
And from preliminary trigonometry, we know that the sum of angles in a triangle is 180. So by adding each of the angles in the triangular part together, we have a total of 180 degrees
