This presentation has been made for you by
FRANCISCO GUIJARRO BELDA
From Isaac Albéniz Secondary School
Leganés. Madrid. Spain.
1) Let´s start by the first design. Draw a circle and divide it into six equal parts. You
already know how to do this. You will get two equilateral triangles positioned as you
can see in the image below
2) Join points 2 to 5 and 3 to 6 and get rid of the auxiliary arches. Look at the three
points you get from the intersections between the sides and the diameters. They are
labeled in the image as O1, O2 and O3
3) Place the compass on point O1, take radius O11 and draw a circle. Repeat the
same from points O2 and O3. At this point, you should have got something like the
image below.
4) Erase everything you don´t need and you will have finished. This is the clover
5) The second one is going to be slightly different than the original. Draw again a
circle and divide it into 8 equal parts. Get the eight points star. You already know how
to do this.
6) Draw a square inside the red one taking as a reference the points A, B, C, and D.
You will get O1, O2, O3 and O4 on diameters 12 and 34.
7) Finally, draw the circles placing the compass on points O1, O2, O3 and O4 and radius
O11. You can tell that all the circles are equal
8) Erase everything you don´t need and you will have finished. This is the second
decoration
ACTIVITY
ACTIVITY
Gothic blog

Gothic blog

  • 1.
    This presentation hasbeen made for you by FRANCISCO GUIJARRO BELDA From Isaac Albéniz Secondary School Leganés. Madrid. Spain.
  • 2.
    1) Let´s startby the first design. Draw a circle and divide it into six equal parts. You already know how to do this. You will get two equilateral triangles positioned as you can see in the image below
  • 3.
    2) Join points2 to 5 and 3 to 6 and get rid of the auxiliary arches. Look at the three points you get from the intersections between the sides and the diameters. They are labeled in the image as O1, O2 and O3
  • 4.
    3) Place thecompass on point O1, take radius O11 and draw a circle. Repeat the same from points O2 and O3. At this point, you should have got something like the image below.
  • 5.
    4) Erase everythingyou don´t need and you will have finished. This is the clover
  • 6.
    5) The secondone is going to be slightly different than the original. Draw again a circle and divide it into 8 equal parts. Get the eight points star. You already know how to do this.
  • 7.
    6) Draw asquare inside the red one taking as a reference the points A, B, C, and D. You will get O1, O2, O3 and O4 on diameters 12 and 34.
  • 8.
    7) Finally, drawthe circles placing the compass on points O1, O2, O3 and O4 and radius O11. You can tell that all the circles are equal
  • 9.
    8) Erase everythingyou don´t need and you will have finished. This is the second decoration
  • 10.
  • 11.