Illustration of a regular nonagon inscribed in a circle. This could also be described as a circle circumscribed…

Development and top completion exercise problem of the cone by dividing the base into equal parts and…

An exercise problem to complete the top and develop, stretched out, image of the flange and hood cones…

An exercise problem in creating a development or rolled out surface of a cylinder in a 4" by 5" drawing…

A development, or rolled out, cone where the point A is the meeting point for the sides. The development…

A rolled out, or development, of the cylinder. The development is created by drawing the top curve with…

The development, or unfolded prism, of the rectangular pyramid. The sides of the prism is joined at…

A development, or rolled out, triangle pyramid. The image is created by making an arc at the bottom…

A development, or rolled out image, of two cylinders intersecting each other. The large rectangular…

Illustration of 12 equilateral triangles inscribed in an equilateral dodecagon. Each vertex of the dodecagon…

Illustration of 3 squares inscribed in an regular dodecagon. Each vertex of the dodecagon is also a…

Illustration of a regular hexagon and an equilateral triangle inscribed in a regular dodecagon. This…

Illustration of a regular hexagon inscribed in a regular dodecagon. This could also be described as…

Illustration of a square circumscribed about a regular dodecagon. This could also be described as a…

Illustration of a square inscribed in an regular dodecagon. This could also be described as a regular…

Illustration of 2 squares; one inscribed in a regular dodecagon and the other circumscribed about the…

Illustration of an equilateral triangle inscribed in an equilateral dodecagon. This could also be described…

A development or rolled out image exercise problem of the dome and finding the true shape of the hip,…

Illustration of a rhombus circumscribed about an ellipse. This could also be described as an ellipse…

Illustration of 10 congruent equilateral triangles that have the same center. Each triangle has been…

Illustration of 10 congruent equilateral triangles that have the same center. Each triangle has been…

Illustration of 20 congruent equilateral triangles that have the same center. Each triangle has been…

Illustration of 5 congruent equilateral triangles that have the same center. Each triangle has been…

Illustration of a circle inscribed in a regular nonagon. This could also be described as a regular nonagon…

Illustration of an equilateral triangle inscribed in a regular nonagon. This could also be described…

A problem exercise creating a stretched out or developed image of the octagonal light shade by using…

Problem exercise in drawing a development or a stretchout image of the octagonal roof and finding the…

Illustration of 2 regular congruent pentagons that have the same center. One pentagon has been rotated…

Illustration of 4 regular congruent pentagons that have the same center. Each pentagon has been rotated…

Illustration of 8 regular congruent pentagons that have the same center. Each pentagon has been rotated…

A sample exercise problem in completing the top part of the hexagonal pyramid and to create a development,…

A sample exercise problem to complete the top part and create a stretched out image of the oblique hexagonal…

A pentagonal pyramid problem exercise to complete the top view of the image, and development, or rolled…

The problem exercise in completing the top view and creating the development, or rolled out, image of…

Illustration of a pentagon with sides measuring 6 2/3', 4 1/2', 5 1/3', 4 3/4', and 9 5/12'.

An illustration of a square and triangles within the square. This is an example of a problem that can…

Illustration of a square inscribed in a square. The interior square is rotated 45° in relation to…

Illustration of 12 congruent squares that have the same center. Each square has been rotated 7.5°…

Illustration of 16 congruent squares that have the same center. Each square has been rotated 5.625°…

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 3 congruent squares that have the same center. Each square has been rotated 30°…

Illustration of 4 congruent squares that have the same center. Each square has been rotated 22.5°…

Illustration of 6 congruent squares that have the same center. Each square has been rotated 15°…

Illustration of 8 congruent squares that have the same center. Each square has been rotated 11.25°…

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…

The exercise problem of creating a three piece elbow development or rolled out image of the cylinder…

Illustration of a regular nonagon inscribed in an equilateral triangle. This could also be described…

Exercise problem to develop, or rolled out, image of the triangular pyramid by creating an equal length…