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.
1 boast - First meant threaten or threat.. 2  gunboat diplomacy - Foreign policy carried out with the backing of the threat or use of military force.  ostrichism - Self-delusion, a refusal to cope with something, such as a threatâfiguratively hiding one's head in the sand, as the animal is mistakenly thought to do.