Concave polygon Concave polygon A simple polygon that is not convex is called concave, non-convex or reentrant. A concave polygon will always have at least one reflex interior angle—that is, an angle with a measure that is between 180 degrees and 360 degrees exclusive. Some lines containing interior points of a concave polygon intersect its boundary at more than two points. Some diagonals of a concave polygon lie partly or wholly outside the polygon. Some sidelines of a concave polygon fail to divide the plane into two half-planes one of which entirely contains the polygon. None of these three statements holds for
Less Than Zero (novel) School in Encino, California, where Bonaduce, recording artist Michael Jackson, film actor Christian Brando, and other children of wealth and celebrity went to school together. In commenting on the novel, Bonaduce notes, "When the book "Less Than Zero" came out, all my classmates were pissed. Not because it was an exact portrayal of our school - but because we failed to get any royalties." "Less Than Zero" has an extensive cast of characters; the ones listed play major roles throughout the novel. The book "Less Than Zero" was very loosely adapted into a movie in 1987 by 20th Century Fox