Square diagonal

Calculate the length of the square diagonal if the perimeter is 172 cm.

Correct result:

d =  60.81 cm

Solution:

o=172 cm  o=4a  a=o/4=172/4=43 cm  d2=a2+a2=432+432=3698  d=2 a=2 43=43 2=60.81 cm



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