Line - Draw

Add straight-line segments to drawing
Each segment is a separate object

Home  tab > Draw panel > Line

Specify first point

Input coordinates or click any point to start

Point vertically up, a green continuous dotted line appear
Input the length then press Enter

Point to right, make sure the green continuous dotted line is appear
Input the length (50) then press Enter

Continue to drawing lines:
Up 200, Right 50, Up 50
Right 300, Down 50, right 50
Down 200, Right 50, Down 50

Click Close on the command line to close to the starting point