Answer:
[tex] \boxed{Measure \: of \: third \: angle = 87\degree} [/tex]
Step-by-step explanation:
The sum of angles of a triangle equals the straight angle (180°, π radians, two right angles, or a half-turn).
Let measure of the third angle be 'x'
[tex] = > 67 \degree + 26\degree + x\degree = 180\degree \\ \\ = > 93\degree + x\degree = 180\degree \\ \\ = > x\degree = 180\degree - 93\degree \\ \\ = > x\degree = 87\degree[/tex]
