Demonstrating Circle Theorems

An inscribed angle that intercepts a diameter is always 90º.

An inscribed angle that intercepts a diameter is always 90º.

You can move any of these vertices, but the two triangles are always similar.

You can move any of these vertices, but the two triangles are always similar.

Using this tool and a few rubber bands, you can illustrate the properties of chords and the angles they form. 

 

PRINT DETAILS

Material: PLA

Resolution: .2mm

Raft: None

Supports: None

Infill: 10%

Shells: 3 (for added strength, necessary when using a rubber band)