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.
Definition & Synonyms. ( 1 n.) The cry of the duck, or a sound in imitation of it; a hoarse, quacking noise. ( 2 v. i.) To act the part of a quack, or pretender. ( 3 v. i.) To make vain and loud pretensions; to boast. ( 4 n.) Hence, one who boastfully pretends to skill or knowledge of any kind not possessed; a charlatan.