Answers

2014-06-05T09:40:49+05:30
SQRT8=SQRT(4*2)=2SQRT2=2*1.414=2.828 ANSWER
or 
Take a right angled triangle ABC right angled at B , AB=2 BC =2AC = (2 +2 1/2 = 8 1/2    AC on number line is root 8.
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