Answer:
[tex]42[/tex]
Step-by-step explanation:
→ The three angles in a triangle add up to [tex]180[/tex]°.
We can write this as an equation:
[tex]x[/tex]° [tex]+[/tex] [tex]29[/tex]° [tex]+[/tex] [tex]109[/tex]° [tex]=[/tex] [tex]180[/tex]°
→ The missing angle is [tex]180[/tex]° minus the measures of the other two angles:
[tex]x[/tex]° [tex]=[/tex] [tex]180[/tex]° [tex]-[/tex] [tex]109[/tex]° [tex]-[/tex] [tex]29[/tex]°
→ The answer:
[tex]x =[/tex] [tex]42[/tex]°
