I have a drawing of the angle support made by cutting a 40*5mm angle along the red lines and bending the same. I was trying to create a 3d model of the finished piece in Solidworks but cannot get the final dimensions accurately (drawing from the 3d model attached.) can anyone guide/suggest a better way to create this?

Please share your solution with everyone, not just with the topic starter. That's one of the pillars of existence for this discussion platform.
Or even better: post your solution here:
I did something with a sweep
This is what I came up with. I guessed that the angle of the bend was 15 degrees and the angle material was irrelevant for the example.

It is not possible to attach the sketch with all the dimensions provided. Please ensure that the dimension of 60mm matches the one in the picture shown.
If you set the dimensions in that manner, you will obtain a straight line without any angle. The angle can either be 0° or 180°, depending on personal preference.
170+(70/2)=205
175+(60/2)=205
I have done using the sheet metal options (since you mentioned that it is cut and bent along the red lines). Hope this helps.