Create an Octagon From a Square

99,211

9

4

Draw a square, which is used to draw this octagon.

Teacher Notes

Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.

Step 1: Divide Into Thirds

Divide the lengths into thirds. However, if you want a regular octagon, the lengths must be around the ratio 7:10:7.

Step 2: Split Into 9 Squares

Draw along the markings to create 9 small squares.

Step 3: Make an Octagon in the 9 Squares

Draw lines such that the octagon can be seen in the 9 squares.

Step 4: Erase Forming the Octagon

Erase the unneeded sides such that it forms an octagon.

Be the First to Share

    Recommendations

    • CNC Contest

      CNC Contest
    • Teacher Contest

      Teacher Contest
    • Maps Challenge

      Maps Challenge

    4 Discussions

    0
    None
    PlazmaKG

    1 year ago

    Rip DRADIS, I don't have access to youtube.

    0
    None
    DRADIS

    3 years ago

    This isn't a regular octagon.

    This method is accurate:

    https://www.youtube.com/watch?v=QosYGggXRVs

    0
    None
    Saad726

    5 years ago on Introduction

    wrong method

    In this procedure all sides of octagon are not equal

    you can see !!!!!!

    0
    None
    artworker

    6 years ago on Introduction

    cool! Just a thought! The diagonals will be sqrt(2) ~1.4 times larger than the the horizontal and vertical sides.