a pole rests against a wall, and the tip of the pole is at a height of 8m. after sometime the pole slips back by 4m and falls on the ground.

what is the length of the pole?

• 10.
  let the distance from of the ladder from the pole be x meter. A/c to Pythagoras th., ladder= root_under( x^2 + 64).
  In the second case, when the ladder moves 4 m , i.e distance from the pole = x+4, it touches the ground, means the length of ladder = x+4.
  Now, equating the both lengths we get x=6, length = x+4 =10
• 9 years agoHelpfull: Yes(18) No(1)
• let the length of the pole is = L.
  Now
  before slide
  L=((8^2)+(L-4)^2)^1/2
  L=10
  For batter imagination draw a diagram
  
• 9 years agoHelpfull: Yes(4) No(0)
• 10
  Tricky question . solved with options.
• 9 years agoHelpfull: Yes(2) No(0)
• BY USING RIGHT ANGLE TRIANGLE METHOD H=8m b=4m
  ans is square root of 80
  
• 9 years agoHelpfull: Yes(2) No(2)
• no ladder in ques
• 7 years agoHelpfull: Yes(1) No(0)
• Hey anisha have u attempt dat question in P.S related to area of two quadrilateral and parameters .
  If yes den plz share ur answer
• 9 years agoHelpfull: Yes(0) No(0)
• sameer yadav can u explain that how can we solve this question by options
• 9 years agoHelpfull: Yes(0) No(0)
• if we consider a triangle having sides(3,4,5) then T will be 56, but if we consider a triangle of sides(3,5,6) then aplying Heros formula we get a fractional value of area of triangle hence value of T will also be fractional... hence correct option will be (a) can be fractional as in this option there is a "CAN"
  
  one more thing when you are taking the sides of a triangle on your own then make sure that sum of two sides is always greater than third side.....you cant take any value to any sides that is the property of a triangle otherwise triangle cannot be formed.
  and like wise difference of any two sides will be less than third side.
  
  
  correct option is (A) can be fractional
• 7 years agoHelpfull: Yes(0) No(0)