The sum of the three angles of every triangle always equals 180Â° . A right triangle always has one angle equal to 90Â° and two angles whose sum is 90Â° , making a total of 180Â° . A rectangle is a four sided shape. with four right angles (90Â° ).
boast 1. v. boastÂ·ed, boastÂ·ing, boasts. v. intr. To talk or write about oneself or something related to oneself in a proud or self-admiring way. v. tr.
â¢ Brag. ( 1 adv.) Proudly; boastfully. ( 2 v. t.) To boast of. ( 3 n.) The thing which is boasted of. ( n.) A game at cards similar to 1  bluff. (n.) A boast or boasting; bragging; ostentatious pretense or self glorification. ( v. i.) Brisk; full of spirits; boasting; pretentious; conceited.