Concave polygon does not contain all other vertices in its edges and interior. The convex hull of the concave polygon's vertices, and that of its edges, contains points that are exterior to the 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
360 Degrees of Billy Paul Billy confesses reminded him of a stretch behind bars his step-dad did, and the funky follow-up to Mrs Jones, Am I Black Enough For You?" Singles 360 Degrees of Billy Paul 360 Degrees of Billy Paul is an album by soul singer Billy Paul. It was produced by Kenny Gamble and Leon Huff and arranged by Bobby Martin, Lenny Pakula and Norman Harris. Released in 1972, it includes the Grammy Award-winning number 1 pop and soul single "Me and Mrs. Jones" and its follow-up "Am I Black Enough for You?" which reached number 29 on the soul chart and number