text: ##### PQR is a triangle, right-angled at P. If PQ = 10 cm and PR = 24 cm, find QR.
  
  It is given in the question that,
  
  PQ = 10 cm
  
  Also,
  
  PR = 24 cm
  
  We have to find QR
  
  We know that,
  
  According to Pythagoras theorem,
  
  In a right angled triangle:
  
  (Hypotenuse)2 = (Perpendicular)2 + (Base)2
  
  By applying Pythagoras theorem in the given question, we get:
  
  (QR)2 = (PQ)2 + (PR)2
  
  (QR)2 = (10)2 + (24)2
  
  (QR)2 = 100 + 576
  
  (QR)2 = 676
  
  Hence,
  
  QR =
  
  QR = 26 cm
  
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