 ### Projection of Square Bar

Projection of a square bar. ### Projection of Square Bar With Cylindrical Portion

Projection of a square bar with a cylindrical portion. ### Volume Of Square Prism

Illustration used to show finding the volume of a square prism. ### Intersection of Square Pyramid and a Plane

Illustration of the intersection of a square pyramid and a plane. ### Intersection of Square Pyramid and a Plane

Illustration of the intersection of a square pyramid and a plane. ### Isometric of Stairs

Illustration of stairs; 3-dimensional view of 4 steps. The staircase can be created by combining/stacking… ### Cylindrical Water Tank

Cylindrical water tank with a height of 10 ft., thickness of 3 inches, and diameter of 3 feet. The diagram… ### Two Proportional Tetrahedrons

Diagram used to prove the theorem: "Two tetrahedrons having a trihedral angle in each equal, are to… ### Development Exercise of Cylinder using Three Piece Elbow

The exercise problem of creating a three piece elbow development or rolled out image of the cylinder… ### Volume Of Triangular Prism

Illustration used to show finding the volume of a triangular prism. ### Volume of Triangular Prism

Diagram used to prove the theorem: "The volume of a triangular prism is equal to the product of its… ### Parallelopiped Divided Into Triangular Prisms

Diagram used to prove the theorem: "The plane passed through two diagonally opposite edges of a parallelopiped… ### Development Exercise of Triangular Pyramid

Exercise problem to develop, or rolled out, image of the triangular pyramid by creating an equal length… ### Development of a Triangular Pyramid

Development of a triangular pyramid. ### Plan and Elevation of a Triangular Pyramid

Plan and elevation of a triangular pyramid. ### Intersection of Triangular Pyramid and a Plane

Illustration of the intersection of a triangular pyramid and a plane. ### Volume of Triangular Pyramid

Diagram used to prove the theorem: "The volume of a triangular pyramid is equal to one third of a triangular… ### Equivalent Triangular Pyramids

Diagram used to prove the theorem: "Two triangular pyramids having equivalent bases and equal altitudes… ### Two Cylinders with Axes Not Intersecting

"If the cylinder A were to be developed a right section as at S—S would have to be taken, whose… ### Intersection of Two Cylinders

"The intersection of two cylinders might represent a dome on a boiler. If the top view of cylinder A… ### Cross Section of Water Tank

Cross section of Pullman car water tank. The diagram can be used to find volume.