The series was rebooted with a 2014 film, which has also been poorly received.  1 Box Office Mojo: Left Behind Weekend Gross Results. 2  Janaya Stephens, The Making of Left Behind: The Movie. Left Behind: The Movie DVD Special Features. Cloud Ten Pictures, 2005.  3 Rotten Tomatoes: Left Behind: The Movie. January 26, 2001.
Since a triangle has 3 angles that total 180 degrees, it can have only 1 right angle. Since a triangle has 180 degrees and 3 angles, it can only have 1 right angle.
Right angles are defined as those angles that measure exactly 90 degrees. The most important place you will see them is in triangles. The formula that comes from the right triangle is the Pythagorean Theorem that relates all the sides of the right triangle to each other.