2 at the apex of the roof, 4 at each top corner and 3 at each bottom corner. So I begin 8 lines to be drawn with 5 possible starting points, depending on which vertex is selected as the starting point there are 2, 3 or 4 choices for the first line. I believe I am on the right path but lack the education to go further. "I've been toying with the house with an X drawing and trying to mathematically figure out the number of possible correct solutions. If you do not yet have an account and you are a teacher, tutor or parent you can apply for one by completing the form on the Sign Up page.Ī Transum subscription also gives you access to the 'Class Admin' student management system, downloadable worksheets, many more teaching resources and opens up ad-free access to the Transum website for you and your pupils. The solutions to this and other Transum puzzles, exercises and activities are available here when you are signed in to your Transum subscription account. There is printable worksheet to go with this activity and also an activity called Bridge Crossings based on similar principles. When you have all six diagrams correct you can collect a Transum Trophy for your efforts. When you think you have traced all of the diagrams you can and ticked the tick box of the others you can click on the check button to see if you are right. A tick box is provided below the diagrams for you to indicate the impossible diagrams. The 'Start Again' button is provided to let you erase incorrect attempts.Īt least one of the diagrams is impossible to draw in this way. In this version you are required to click on the dots to show the route of the pencil. This is a computer version of the classic pencil and paper puzzles in which the objective is to trace the diagram without taking the pencil off the paper and without going over the same line twice.
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