To apply the angle mate, follow these steps: 

1. Select the Mate command. In Mate Selections, select the two slides.
2. Select the standard mate Angle and input 75 degrees for the angle, as stated in the initial drawing.
3. Apply the mate by clicking on the green checkmark.

Similar to the distance mate, we will get a checkbox with a Flip dimension. This will flip the dimension that the angle is measured in. Try checking the box to see what effect this has on the assembly. Once checked, the output will be reflected in the preview on the canvas.

Note that, when applying mates, we may get a shortcut menu showing the various mates. We can use this menu in the same way we use the PropertyManager:

Once we've applied the angle mate, the final shape will look as follows. Note that, if we drag any of the levers, the other lever will rotate with it while keeping the angle between them equal to 75 degrees. Also, note that the assembly is still under defined; however, we will keep it that way to show a simple simulation of how the different parts in the assembly move together:

This concludes this exercise on the distance and angle mates. We have learned about the following topics: 

• What the distance and angle mates are and what they do
• How to apply the distance and angle mates

At this point, we have covered all the standard mates that can be used in a SOLIDWORKS assembly. These allow us to model products that consist of different parts that interact with each other. Next, we will start looking at materials and mass properties within the context of an assembly.