Triangles Can be Solved Using: 1  Pythagoras's Theorem. 2  Sine Rule. 3  Cosine Rule. 4  Angles all add up to 180 degrees.
Report Abuse. sound travels fastest in solid substances. as in solids, the medium is denser and it aids the propogation of sound. sound will not travel in vaccum as they will not propogate if no material medium is present. in air it travels with the speed of 350 m/s which is less than the speed of sound in solids.
1 The speed of sound in air is approximately 330 m/s (about 1,200 kph or 700 mph). 2  The speed of sound in air is nearly the same for all frequencies and amplitudes. 3  It increases with temperature.  Determining the Distance to a Lightning Bolt: Sound waves take approximately 5 seconds to travel 1 mile.