Beginner Question: fillet and angles of lines

[Anonymous]

Hi 

I have a very simple question (started with AutoCAD yesterday):

how can I exactly redraw this part shown in the attached fig?

I do not want to calculate the length of the lines using trigonometric functions and then use the fillet function with a radius of 2.5. this would not be accurate.

How can I get the 45° degree line and 2.5 radius fillets without knowing the length of the 45° line and only the points where the bending of the corner starts?

[parkr4st]

one way is to layout with construction lines, three lines and the arc, fillet, offset and mirror

you'll get others

dave

[nestly2 · Accepted solution]

If you use CIRCLES where the FILLETS/arcs will be, it's easier to visualize and construct. 

[Anonymous]

Thanks a lot! Problem solved.