Square root of 200?

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Answer 1 · 2018-05-08T12:53:54

#color(blue)(10sqrt(2)~~14.14213562)#

Notice we can write #200# as #2xx100#

So:

#sqrt(200)=sqrt(2xx100)#

#sqrt(100)=10#

#:.#

#sqrt(2xx100)=10sqrt(2)#

#10sqrt(2)~~14.14213562#