Answer:
it is less then 90 degrese
Step-by-step explanation:
because it is an actue angle it measure less then 90
∠ A = 33°
The 3 angles lie on a straight line, hence their sum = 180° , this
A + 57 + 90 = 180° , that is
A + 147° = 180° ( subtract 147° from both sides )
A = 33°
