Answer :-
Pythagoras was a Greek ancient mathematician .
Hence the correct option is [b] .
He has given Pythagoras Theorem or Baudhayan Theorem which states that ,
Pythagoras Theorem :
In a right angled triangle , the sum of squares of base and perpendicular is equal to the square of hypontenuse .
[tex]\boxed{\red{\bf (hypontenuse)^2=base^2+(perpendicular)^2}}[/tex]
Converse of Pythagoras Theorem :
If in a triangle the sum of squares of two sides of triangle is equal to the square of longest side , then the angle opposite to the longest side will be a right angle that is 90° .
