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Firstly, draw a line segment AB of 1 cm and fold that paper along the line segment AB. Then at the point B, also draw a line of 1 cm at an angle of 90 degrees to the line segment AB and name it at point C. Now fold the paper along the BC and join C and A. Also, fold the paper along AC and draw a vertical line of 1 cm on the AC and mark it AD. The last step is to join A and D and take the AD as base and repeat all the steps you have done before to get root spiral.

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