Circumference 72414

Calculate the diagonal and the area of a square if its circumference is 10 centimeters.

Correct answer:

u =  3.5355 cm
S =  6.25 cm2

Step-by-step explanation:

o=10 cm o=4a  a=o/4=10/4=25=2.5 cm  u2=a2+a2=2a2  u=2 a=2 2.5=3.5355 cm
S=a2=252=6.25 cm2

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