The inclined plane is removed from the diagram above leaving only the Weight (W = mg) - shown in red - and the two component forces - shown in yellow and orange.
The component in yellow -
this is the component parallel to the inclined plane and using trigonometry, it is worked out to be
Finclined = mg sin θ
The component in orange -
this is the component perpendicular to the inclined plane and using trigonometry it is worked out to be
Fnormal = mg cos θ
Click on the diagram to start all over again.
