Answers

2015-04-27T21:49:28+05:30
To represent on the number line l, firstly mark the points O, A, B and C on l such that OA = AB = BC = 1. Draw CD ⊥ l such that CD = 1 unit. Join BD. In right ΔBCD, BD2 = BC2 + CD2 = 12 + 12 = 1 + 1 = 2 Draw DE ⊥ BD such that DE = 1 units. Join BE. In right ΔBDE, BE2 = BD2 + DE2 Taking B as centre and BE as radius, draw an arc which intersects l in F. Here, OB = 2 and OF = OB + BF = So, the point F represents on the number line.
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