Find the length of the missing side. if necessary, round to the nearest tenth. a=40 c=35 b=x

      Best   a= 20 b= ? c=15
does your question referring to a right triangle?
c should be longer than a..but if we consider
a as the hypotenuse, then the remaining
two sides are the two legs..oftentimes we use the
equation c² = a² +b²

A: 18/15b : 7 - -8 = 15 , 12 - -6 = 18 the y variable always goes over the x variables, c : same thing a