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
98 Degrees and Rising 98 Degrees and Rising 98 Degrees and Rising is the second album released by American boy band 98 Degrees. It was recorded at Blue Wave Studios in Vancouver, British Columbia, Canada and released by Motown on October 20, 1998. The album features the singles "Because of You" and "The Hardest Thing", which peaked at No. 3 and No. 5 on the "Billboard" Hot 100 respectively. The album also features two covers, Mark Wills' "I Do (Cherish You)" and "She's Out of My Life", made famous by Michael Jackson. It also features a duet with label mate Stevie Wonder, "True to