Question 2522
 
  The sides of the triangle = 10 ft.,  22 ft. & 18 ft.
 
  If the triangle is a rt.angled triangle, then it hypotenus,
  being the biggest side, should be = 22 ft.
 
  Applying Pythagorus theorum, the square of hyp. should be equal
  to the sum of the squares of the other two sides.
 
  So  {{{22^2}}}should be = {{{(10^2 + 18^2)}}}
  but here 484(Sq.of LHS) is not = 100 + 324.
 
  So this triangular garden is not in the shape of rt.triangle.  ... Proved.

  gsm