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o--------1mile--------o--------1mile--------o | |1mile | | o--------1mile--------o--------1mile--------o | |1mile | | o--------1mile--------o--------1mile--------o Build a road system that access all the 9 towns shown on the map. How long is the total length of shortest pavement that can be constructed?1 point
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Connecting the 8 corks with web with least linear meter requires connecting with the web along the sides of the cube (no diagonals) with length 1m, and uses at least 7 segments to connect 8 corks. so the total length is 7*1m = 7 meters. and the shape could vary, as long as you pass the web only along the sides of the cube.1 point
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I finally found a way to make the road system less than 7.5 miles.
1 point