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.
Origin. Late Middle English: the noun a shortening of obsolete avaunt 'boasting, a boast'; the verb (originally in the sense 'use boastful language') from Old French vanter, from late Latin vantare, based on Latin vanus 'vain, empty'.ronunciation: /ËvÉËntÉªÅli/. Example sentences. 1  It is as if he caught a glimpse of a way to resolve the traumas-of race, allegiance, identity, inequality-that have beset America since it declared itself, vauntingly, impossibly, âthe land of the freeâ.