Answer
c=6.403
Work Step by Step
Given that triangle is right angle triangle where a=5 and b=4
and c has to be found
formula for finding hypoteneus of right andle triangle is $a^{2}$+$b^{2}$=$c^{2}$
so after putting values of a and b,
$5^{2}$+$4^{2}$=$c^{2}$
25+16=$c^{2}$
$c^{2}$=41
c=$\sqrt 41$=6.403
