How to obtain rout 5 from the number line

1.	How to obtain rout 5 from the number line
Answer» First of all solve. Let us take horizontal line xox.Mark as orgin such that represent o.Draw a perpendicular BC to ox.Take or cut off BC = 1 unit.(after writting this draw a figure by drawing a line as much length u want after that draw a 90 degree angle line on it and take one unit from the straight line.and two unit from the vertical line.)Then solveSince; OBC is the right angle triangle.(OB) square +(BC) square = (OC) square(2 unit) square+ (1 unit) square =(OC) sq4+1 =(OC) square5 = OC Under root 5 =OC

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