Find The Distance Between Their Top ? If

Two poles of height 7 m and 12 m stand on a plane ground. If the distance between their feet is 12, the distance between their top will be

  1. 13 m
  2. 19 m
  3. 17 m
  4. 15 m
Anurag Mishra Professor Asked on 12th August 2015 in Maths.
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  • 1 Answer(s)

    Answer: (1) 13 m

    Explanation:-
    Let the distance between their top will be X m.

    In right triangle A D E
    AE2 = DE2 + AD2   (By Pythagoras theorem)
    Then, X2 = 52 + 122
    X2 = 25 + 144
    X2 = 169
    Square root on both side,
    X = 13 m
    Then, the distance between their top will be 13 m.
    Hence, the answer is (1) 13 m.

    Anurag Mishra Professor Answered on 13th August 2015.
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