Popcorn box that is in the shape of a frustum of a rectangular pyramid.
Illustration of a right hollow rectangular pyramid that has been cut by a plane parallel to the base.…
Illustration of a square circumscribed about a regular dodecagon. This could also be described as a…
Illustration of 2 squares; one inscribed in a regular dodecagon and the other circumscribed about the…
Illustration of a square inscribed in an regular dodecagon. This could also be described as a regular…
Illustration of 3 squares inscribed in an regular dodecagon. Each vertex of the dodecagon is also a…
Illustration of a square inscribed in a square. The interior square is rotated 45° in relation to…
Illustration of a square inscribed in a square that is inscribed in another square. Each successive…
Illustration of a square inscribed in a square that is inscribed in another square. Each successive…
Illustration of a square inscribed in a square that is inscribed in another square. Each successive…
Illustration of 2 concentric squares whose vertices are connected by line segments.
Illustration of 2 congruent squares that have the same center. One square has been rotated 45° in…
Illustration of 4 congruent squares that have the same center. Each square has been rotated 22.5°…
Illustration of 8 congruent squares that have the same center. Each square has been rotated 11.25°…
Illustration of 16 congruent squares that have the same center. Each square has been rotated 5.625°…
Illustration of 3 congruent squares that have the same center. Each square has been rotated 30°…
Illustration of 6 congruent squares that have the same center. Each square has been rotated 15°…
Illustration of 12 congruent squares that have the same center. Each square has been rotated 7.5°…
Illustration showing the construction of a golden rectangle. Beginning with a unit square, a line is…
Illustration showing the golden rectangle. Two quantities are considered to be in the golden ratio if…
Illustration showing a nesting of 2 golden rectangles. Two quantities are considered to be in the golden…
Illustration showing a nesting of 3 golden rectangles. Two quantities are considered to be in the golden…
Illustration showing a nesting of 4 golden rectangles. Two quantities are considered to be in the golden…
Illustration showing a nesting of 5 golden rectangles. Two quantities are considered to be in the golden…
Illustration showing a nesting of 6 golden rectangles. Two quantities are considered to be in the golden…
Illustration showing a nesting of 7 golden rectangles. Two quantities are considered to be in the golden…
Illustration showing succession of golden rectangles that are used to construct the golden spiral. Two…
Illustration showing succession of golden rectangles that are used to construct the golden spiral. Two…
Illustration of a decagonal prism with regular decagons for bases and rectangular faces. The hidden…
Illustration of a swimming pool and water hose that is in the shape of a hollow regular decagonal prism…
Illustration of a non-regular decagonal prism in the shape of a star. Then ends/bases are made of star-shaped…
Illustration of a non-regular decagonal prism in the shape of a star. Then ends/bases are made of star-shaped…
Side view of a non-regular decagonal prism in the shape of a star. Then ends/bases are made of star-shaped…
Illustration of a right decagonal prism with regular decagons for bases and rectangular faces.
Illustration of 2 similar right decagonal prisms. Both have regular decagons for bases and rectangular…
Illustration of a right decagonal prism with regular decagons for bases and rectangular faces. The prism…
Illustration of a hollow right heptagonal/septagonal prism with regular heptagons/septagons for bases…
Illustration of a regular right heptagonal/septagonal prism with regular heptagons/septagons for bases…
Illustration of a right heptagonal/septagonal prism with regular heptagons/septagons for bases and rectangular…
Illustration of 2 similar right heptagonal/septagonal prisms. Both have regular heptagons/septagons…
Illustration of a right heptagonal/septagonal prism with regular heptagons/septagons for bases and rectangular…
Illustration of a right hexagonal prism with a height less than the length of the edge of the hexagon.
Illustration of a right hexagonal prism with a height greater than the length of the edge of the hexagon.
Illustration of 2 similar right hexagonal prisms. The height of the prism and length of the side of…
Illustration of 2 similar right hexagonal prisms. The height of the prism and length of the side of…
Illustration of a right hexagonal prism with hexagons for bases and square faces. The hidden edges are…
Illustration of a right hexagonal prism with hexagons for bases and rectangular faces. The height of…
Illustration of a right nonagonal prism with regular nonagons for bases and rectangular faces. The hidden…
Illustration of a right nonagonal prism with regular nonagons for bases and rectangular faces. The height…
Illustration of a right octagonal prism with regular octagons for bases and rectangular faces. The hidden…
Illustration of 2 right octagonal prisms with congruent bases, but different heights. The height of…
Illustration of 2 Similar right octagonal prisms. The height and length of the edges of the smaller…