Right angle of what a right angle is, namely two straight lines intersecting to form two equal and adjacent angles. The straight lines which form right angles are called perpendicular. Euclid uses right angles in definitions 11 and 12 to define acute angles (those smaller than a right angle) and obtuse angles (those greater than a right angle). Two angles are called complementary if their sum is a right angle. Book 1 Postulate 4 states that all right angles are equal, which allows Euclid to use a right angle as a unit to measure other angles with. Euclid's commentator Proclus gave a
Larger than Life (album) Larger than Life (album) Larger Than Life is the second studio album by American singer Jody Watley, released by MCA Records on March 27, 1989. "Cymone remains as slickly up to the minute as ever," observed "Q"'s Mark Cooper, "filling his enormous rhythm sound with hip-hop references… Occasionally Watley lets the pose slip and slips into a passively sensuous ballad like 'Everything', but mostly she keeps acting stroppy. Perhaps she's annoyed at the lack of any tune to match that first hit; more likely she thinks looking angry makes her sexy." Following the success of the "Billboard" chart hit singles,