barleycorn Posted March 7, 2012 Share Posted March 7, 2012 Allowing for the curvature of the Earth then an X shaped tunnel would be best. jb Link to comment Share on other sites More sharing options...
Waldo Posted March 7, 2012 Author Share Posted March 7, 2012 No. The x shaped configuration, is not the best answer; also, it's not a trick question. Link to comment Share on other sites More sharing options...
Waldo Posted March 7, 2012 Author Share Posted March 7, 2012 Allowing for the curvature of the Earth Also, there is no curvature, in this case; it's just 4 towns on a flat plane. Any improvements on 2.82 miles of the x configuration? Link to comment Share on other sites More sharing options...
Chris_Sleeps Posted March 7, 2012 Share Posted March 7, 2012 would come to just about 2.82 miles. How did you arrive at that figure? Please show working out. Link to comment Share on other sites More sharing options...
barleycorn Posted March 7, 2012 Share Posted March 7, 2012 2.7321miles jb Link to comment Share on other sites More sharing options...
flamingjimmy Posted March 7, 2012 Share Posted March 7, 2012 1 + /3 is the answer. In a shape that's like a H but squeezed in the middle. Link to comment Share on other sites More sharing options...
barleycorn Posted March 7, 2012 Share Posted March 7, 2012 How did you arrive at that figure? Please show working out. 2 x sq root of 2 (from Pythagoras' theorm of right angled triangles). Still wrong though. The answer is 2.7321 miles. jb Link to comment Share on other sites More sharing options...
Waldo Posted March 7, 2012 Author Share Posted March 7, 2012 1 + /3 is the answer. In a shape that's like a H but squeezed in the middle. Sounds correct, well done FJ! This guy explains all... More from the same here... http://www.youtube.com/user/singingbanana/videos Link to comment Share on other sites More sharing options...
truman Posted March 7, 2012 Share Posted March 7, 2012 2 x sq root of 2 (from Pythagoras' theorm of right angled triangles). Still wrong though. The answer is 2.7321 miles. jb sq root of 2 is 1.41 (near enough) 2x1.41=2.82.. where do you lose the other half mile? Edited to add..just seen the youtube.. Link to comment Share on other sites More sharing options...
Waldo Posted March 7, 2012 Author Share Posted March 7, 2012 Check out the first link, in my previous post truman. Link to comment Share on other sites More sharing options...
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