Square

Calculate the perimeter and the area of square with a diagonal length 30 cm.

Correct result:

o =  84.8528 cm
S =  450 cm2

Solution:

u=30 a=u/2=30/2=15 2≐21.2132 o=4a=4⋅ 21.2132=60 2=84.8528 cm
S=a2=21.21322=450 cm2

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