Answer:
∠ A = 30°
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
sum the 3 angles and equate to 180
90 + x + 67 + x + 37 = 180, that is
2x + 194 = 180 ( subtract 194 from both sides )
2x = - 14 ( divide both sides by 2 )
x = - 7
Then
∠ A = x + 37 = - 7 + 37 = 30°
