Proofs concerning equilateral triangles About Transcript Sal proves that the angles of an equilateral triangle are all congruent (and therefore they all measure 60Â°), and conversely, that triangles with all congruent angles are equilateral.
Lung disorders or diseases in which a hyperresonant sound is heard upon percussion. small pneumothorax, lung hyperinflation due to emphysema or acute asthma attack.
Vesicular breath sounds (MP3) Audio courtesy of MEDiscuss. Tracheal sounds are the sounds heard over the sternum. They are louder and higher pitched than vesicular sounds are. With tracheal sounds, the expiratory phase is as long as or longer than the inspiratory phase.