Can you draw 4 straight lines with 9 dots?
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Can you draw 4 straight lines with 9 dots?
The 9 Dots Problem The problem is to connect the dots with no more than 4 straight lines without lifting your hand from the paper. First attempts are always frustrating. For one always comes up with 5 lines instead of 4. The solution lies in the observation that it’s permissible to cross square boundaries.
What is the solution to the nine dot problem?
The solution involves looking outside the two-dimensional sheet of paper on which the nine dots are drawn and coning the paper three-dimensionally aligning the dots along a spiral, thus a single line can be drawn connecting all nine dots – which would appear as three lines in parallel on the paper, when flattened out.
What is the 9 dot IQ test?
Participants are presented with a set of dots arranged in a 3×3 grid and challenged to connect all nine dots, without lifting their pencil from the paper, using the fewest possible number of straight lines.
How do you connect the nines?
Join the nine dots in a 3-by-3 two-axis grid by 4 straight lines without visiting a dot more than once and without raising your pencil from the paper. The nine dots are on a plane surface. Time to solve: 30 minutes.
Why is the 9 dot problem so difficult?
Consequently, they hypothesized that the nine-dot problem is difficult because people are so dominated by the perception of a square that the do not ‘see’ the possibility of extending lines outside the square formed by the dots (Scheerer, 1963).
What is it called when you draw without lifting pencil?
They are a type of contour drawing called a “Continuous line contour drawing’. It is done without picking your pencil off of the paper. “A contour is the line which defines a form or edge – an outline. Contour drawing is the place where most beginners start, following the visible edges of a shape.
What can be drawn without a pencil?
Breath is a simple process that all the living creatures in the world draw. There is no need for a Pen or Pencil to take a Breath. So, the correct answer to this riddle is Breath.
How do you connect dots in a circle without crossing lines?
Consider a circle with n points on circumference of it where n is even. Count number of ways we can connect these points such that no two connecting lines to cross each other and every point is connected with exactly one other point.
