Iron Triangle, Richmond, California Iron Triangle of the Vietnam war era.) Residents are attempting to reverse this image in a number of ways. One of these is the new East Bay Center for the Performing Arts (completed in 2011) at MacDonald and 11th St, which contains the aptly-named Iron Triangle Theater. Iron Triangle, Richmond, California The Iron Triangle, sometimes known as Central Richmond, is a neighborhood in Richmond, California. It is a largely residential area but includes the downtown Richmond business district along Macdonald Avenue. Commercial areas on Cutting Boulevard and near Interstate 580 are also in the neighborhood if the more extensive of
Triangle it relatively easy to measure the length of each side, but relatively difficult to construct a 'height'. Various methods may be used in practice, depending on what is known about the triangle. The following is a selection of frequently used formulae for the area of a triangle. The height of a triangle can be found through the application of trigonometry. "Knowing SAS": Using the labels in the image on the right, the altitude is . Substituting this in the formula formula_26 derived above, the area of the triangle can be expressed as: (where α is the interior angle at "A",