Answer :
Solution
Step 1:
Let the measure of the third angle be x.
Step 2
Th sum of angles in a triangle is 180 degrees.
[tex]\begin{gathered} x\text{ + 89 + 36 = 180} \\ \\ x\text{ + 125 = 180} \\ \\ x\text{ = 180 - 125} \\ \\ x\text{ = 55} \end{gathered}[/tex]Final answer
The missing angle is 55