Two angels in a triangle add up two 115 degrees what is the size of the third angle

The internal angles in a triangle add up to 180

I think the question should say

'2 angles in a triangle add up to 115 degrees'

so therefor

x+y+z=180

2 angles are x+y

115+z=180

z=3rd angle

solve

115+z=180

subtract 115 from boths ides

z=65

answer is third angle=65 degrees