Question 913438


Is the triangle with the given side lengths
    a right triangle: 

 {{{a=1}}} 

{{{b=2}}}

{{{c= 5}}}

 if it is a right triangle, than {{{c^2=a^2+b^2}}} 


{{{5^2=1^2+2^2}}} 

{{{25=1+4}}}
 
{{{25<>5}}} so,  it is NOT a right triangle