Answer
$m\angle{HAF} = 50^o$
The angle is acute.
Work Step by Step
point H is at $180^o$
point F is at $130^o$
Thus,
$m\angle{HAF} =180^o-130^o=50^o$
Acute angles are angles whose measure is less than 90 degrees.
Thus, $\angle{HAF}$ is acute.
