Geometry - Triangles > Interior angles of a trlangle 20. The three angles of a triangle measure x°, yº and 17. Which of the following statements must be true? y=180- x+y=17 y+x= 180 - 17 y=x+ 17

Geometry Triangles gt Interior angles of a trlangle 20 The three angles of a triangle measure x yº and 17 Which of the following statements must be true y180 xy class=