Magnification of the square

If we increase the square side, increase the content of the 80 %. About what percentage was increased his sides?

Result

p =  34.2 %

Solution:

p=100%(1+801001)=34.2%p = 100 \% \cdot ( \sqrt{ 1+ \dfrac{ 80}{100}} -1) = 34.2 \%



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