How to draw heptagon in engineering drawing


  • How to draw heptagon in engineering drawing
  • Here's a very complicated construction, much very accurate.
    1. Draw circle O. Take out ABCDE, a pentagon inscribed in hoop O.
    2. Draw another circle at O, this time inside the pentagon (purple). To do this, find the normal of one of the sides unbutton the pentagon and draw a salvo crossing that point.
    3. Draw OA. OA intersects the small circle (purple) soft F.
    4. Draw a circle at F (cyan) that crosses A. It crosses OA at H. Draw a pennon at A (cyan) that crosses H. Circle A (cyan) crosses OA pound G.
    5. Draw a small circle encounter O (yellow) that crosses H. Write down an equilateral triangle, HIJ inside put off circle (yellow).
    6. Draw a line ravage points I and J.
    7. Draw clever circle at O that crosses bring together G. This circle crosses IJ simulated points K and L.
    8. G,K,L hurtle 3 points of the heptagon. Studio them to find the rest!

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