Posers and Puzzles

Posers and Puzzles

  1. my head
    Joined
    03 Oct '03
    Moves
    671
    16 Nov '03 20:05
    two points
    the points are connected by a string
    how, in a fixed number of steps, can one pull the string taught so that it fourms a perfect right angle, without using protractor or ruler.

    P.S. why can't we flame eachother, isn't that what fourms are for?
  2. my head
    Joined
    03 Oct '03
    Moves
    671
    17 Nov '03 19:51
    after reviewing the problum, i see that it is poorly stated.

    it would better read: Given points A and B x units appart, find point C such that the mesure of line AC plus the mesure of line BC equals y units, and the mesure of angle ABC equals 90 degrees using only ruler and strait edge.
  3. my head
    Joined
    03 Oct '03
    Moves
    671
    18 Nov '03 12:31
    Originally posted by fearlessleader
    after reviewing the problum, i see that it is poorly stated.

    it would better read: Given points A and B x units appart, find point C such that the mesure of line AC plus the mesure of line BC equals y units, and the mesure of angle ACB equals 90 degrees using only compas and strait edge.
  4. Standard memberFiathahel
    Artist in Drawing
    in your fridge
    Joined
    21 May '03
    Moves
    9766
    18 Nov '03 13:06
    Originally posted by fearlessleader
    after reviewing the problum, i see that it is poorly stated.

    it would better read: Given points A and B x units appart, find point C such that the mesure of line AC plus the mesure of line BC equals y units, and the mesure of angle ABC equals 90 degrees using only ruler and strait edge.
    language problem:
    a ruler, is that an object with which you draw straight lines or an object with which you measure distances?
  5. my head
    Joined
    03 Oct '03
    Moves
    671
    18 Nov '03 19:37
    Originally posted by Fiathahel
    language problem:
    a ruler, is that an object with which you draw straight lines or an object with which you measure distances?
    typo

    is should read compas and strait edge, the compas a divice used to draw circles, the stright edge a device used to draw stright lines
  6. Joined
    10 Feb '03
    Moves
    12969
    19 Nov '03 13:38
    Set the compass' radius to the seperation of A and B.
    Draw two circles, one centered on A, the other on B.
    Use the ruler to draw a staight line between A and B.
    Then draw a straight line between the two cross points of the two circles: Call this the 'midline'.
    The two straight lines will form a cross exactly in the midpoint of the two points A and B: call this the 'cross point'
    Set the compass' radius to the seperation of the crosspoint and either A or B.
    Draw a smaller circle centered on the cross point.
    The point at which this smaller circle cuts the midline on either side will give you the two solution points.
  7. my head
    Joined
    03 Oct '03
    Moves
    671
    21 Nov '03 17:47
    Originally posted by Toe
    Set the compass' radius to the seperation of A and B.
    Draw two circles, one centered on A, the other on B.
    Use the ruler to draw a staight line between A and B.
    Then draw a straight line between the two cross points of the two circles: Call this the 'midline'.
    The two straight lines will form a cross exactly in the midpoint of the two points A and B: call ...[text shortened]... which this smaller circle cuts the midline on either side will give you the two solution points.
    incorrect.
    hint: there are either 4 or 0 solution points for a given X:Y ratio
  8. my head
    Joined
    03 Oct '03
    Moves
    671
    22 Nov '03 23:46
    don't use a compas and straight edge, use a peice of string.
  9. Standard memberPhlabibit
    Mystic Meg
    tinyurl.com/3sbbwd4
    Joined
    27 Mar '03
    Moves
    17242
    23 Nov '03 18:43
    Find a table that is level.

    Take the string and lay more than half on the table...

    Let shorter side dangle off the table.

    Should be aright angle!

    P
  10. my head
    Joined
    03 Oct '03
    Moves
    671
    24 Nov '03 21:26
    good job!😀
    but you didn't answer the question.
  11. Standard memberroyalchicken
    CHAOS GHOST!!!
    Elsewhere
    Joined
    29 Nov '02
    Moves
    17317
    24 Nov '03 21:36
    No flaming, or you face the Wrath o' Russ.

    Good on you, Phlabby.

    Shame on you, fearlessleader, for not stipulating that this string business was taking place in some sort of gravitational field 🙂
  12. Standard memberPhlabibit
    Mystic Meg
    tinyurl.com/3sbbwd4
    Joined
    27 Mar '03
    Moves
    17242
    25 Nov '03 02:40
    Aha!

    The answer is One.

    P
  13. my head
    Joined
    03 Oct '03
    Moves
    671
    25 Nov '03 20:57
    the answer is not one, the closest even vaugly correct answer to one is four.

    and we should be able to flame eachother, that's half the fun of having fourmus.
  14. Standard memberPhlabibit
    Mystic Meg
    tinyurl.com/3sbbwd4
    Joined
    27 Mar '03
    Moves
    17242
    27 Nov '03 15:19
    Originally posted by Phlabibit
    1. Find a table that is level.

    2. Take the string and lay more than half on the table...

    3. Let shorter side dangle off the table.

    Should be aright angle!

    P
    3 steps....
  15. my head
    Joined
    03 Oct '03
    Moves
    671
    29 Nov '03 16:17
    Originally posted by Phlabibit
    3 steps....
    no.
    that proses dose not answer the question, all it dose is fourm a right angle.
Back to Top