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.
Nothing goes faster than light, which travels at a speed of 300.000 km/second, or 186.000 miles/second. Sound travels through our air at the speed of about 343 metres/ â¦ second, or 0,343 km/second, which is 1.125 feet/second, which is in its turn about 0,213 miles/second.