Respuesta :
Answer:
The third angle's measure = 77°
Step-by-step explanation:
To find the third angle, we can subtract 180 by 32° and 71°.
Why?
The sum of interior angles of a triangle always add up to 180° (by the triangle sum theorem)
So, 32 + 71 + x = 180
180 - 71 - 32 = 77°
