A place I would like to share some concepts, ideas, puzzles that simulate the minds of those interested in Math - for competitions or fun.
Thursday, May 02, 2013
Puzzle 47
Semi circles are drawn on each side of a square. An elastic band is stretched tightly around the shape formed (see the figure). Find the length of the elastic band in terms of the length x, of the side of the square.
4 comments:
The length of the elastic band is 4*x*sqrt(2)cm.Sir(Mr.Vidyamanohar) is my answer correct?
its x[pi+2*sqrt(2)]
The length of the elastic band is 44x/7 cm.Sir(Mr.Vidyamanohar) is my answer correct?
The length of elastic band is 4√2x
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