Exercise no. 4: The cube

First we have to make the distinction between MONO-lines and MULTIPLE-lines. I recommend using Mono-lines because this is the correct way of drawing, more accurate and faster. We should be able to draw a cube only from some soft lines and not overlap more lines to define the shape of the cube.


How do we build the cube?


a) we have two perpendicular lines, AB and CD. Draw AB longer than CD (so don’t draw them of the same size).
b) we trace the lines between the following points: B and C, B and D, D and A, A and C and we will form a rhomboid shape.
c) we prolong the BD line untill it intersects the AX line. And we do exactly the same with lines CD and BZ.
d) we intersect points X, Y and Z and we have the cube.
(AD is parallel with XY and YZ is parallel with DB)

Now we have the cube that can be inscribed in a sphere (like we all know that the circle can be inscribed in a square)
D point becomes the O point – the center of the sphere
Sides AX, XY, YZ, ZB, BC, CA are the sides of the hexagon named ACBZYX
(all sides are equal in size)


 

 

 

 

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8 Responses to Exercise no. 4: The cube

  1. fashion-teaching.com says:

    hello. thank you. keep on reading us.:)

  2. Randa says:

    Hi,
    Your site is very informative. I discovered it yesterday and I began my study. I also looked at many of your videos on youtube. Your talent impressed me a lot .
    To succeed in understanding better how construct a square cube what do you think if you specify that CD is the median of AB, AB=2CD and DZ=CD?
    I am impatient to discover all your lesson and teach a lot from you.
    Thank you.
    Randa
    PS : Excuse-me my english is not perfect but I can understand all things you teach.

  3. hanna abera says:

    your site is very educational what is the difference between MONO-lines and MULTIPLE-lines can you explain to me pleeesssss

  4. hanna abera says:

    your site is very educational i have one quotation can you explain to me the different between MONO-lines and MULTIPLE-lines pleas

  5. Hanna Abera says:

    your site is very educational and initiative but i have one quotation what is the different between MONO-lines and MULTIPLE-lines

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