8(R)^2=(a)^2+(b)^2+(c)^2

Question

prove that it's a right angle triangle

Answer 1

The question doesn't make sense what so ever. Can't just throw symbols without any explanation.

 

 Only thing I could see

 

  That If we have a equilateral right triangle with each side leg equal R√2:

 

    a = b =√2 R

  then Hypotenuse c equals  :

   

 c^2= a^2 + b^2 =( √2 R ) ^2 + (√2 R ) ^2 =           4R^2,

     then :

     c^2 + a^2 + b^2 =8R^2