The acute angle is characterized as the "tensest..thus also the warmest"...and therefore it is "highly active" and corresponds to yellow. The obtuse angle he regarded as passive and cold and matched with blue. Since it combines the vertical and horizontal, the right angle, according to Kandinsky, achieves an equilibrium in temperature and thus is associated with red. Moreover, Kandinsky provided diagrams of angles as they relate to the colors including the intermediary hues orange and violet. The acute angles are yellow (30 degrees), and orange (60 degrees), the right angle is red (90 degrees), and the obtuse angles are violet (120 degrees) and blue (150 degrees). (Poling, page 76)
There are some amazing Bauhaus student interpretations of these angle/color combinations illustrating the Poling book. Kandinsky's underlying rules gave students freedom to play even though the structure of the assignment seems rigid. There are infinite interpretations within the color/angle/shape rules. Also it's interesting to look for the rules inside Kandinsky's own paintings.
I can't find any images of the Bauhaus student projects on the web. I just ordered the out-of-print book: Kandinsky's Teaching at the Bauhaus by Clark V. Poling and am eager to do some of the Bauhaus student projects in color/angles and point distribution.
Has anyone you know experimented with the Bauhaus curriculum?