Convert angle from degrees to radians
Angle in radians
$$ \alpha_{rad} = {\alpha_{deg} \cdot {\pi \over 180}} $$
Reaction in beam support angled inwards.
Normal reaction
$$ R_{n_{angled}} = {{\left({ P_v \cdot a }\right) \over \left({ L \cdot \cos\left({ \alpha_{rad} }\right) }\right)}} $$