9514 1404 393
Answer:
A) 44
Step-by-step explanation:
The sum of angle measures is 180°
84 + (x+59) +(x +51) = 180
2x +194 = 180 . . . simplify
2x = -14 . . . . . . . . subtract 194
x = -7 . . . . . . . . . . divide by 2
Angle A is ...
x +51 = (-7) +51 = 44 . . . . degrees
∠A = 44°
