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.
1 Rales sounds will be heard on one side of the chest when you are lying down. 2  There are abnormal rumbling sounds coming from your lungs. 3  This may indicate there is sputum present in the large airways. 4  The doctor will do a percussion test wherein he will tap your chest lightly and listen to its sound.