Difference 66354

A circle is inscribed in a square with a side of 12 cm so that it touches all its sides. Calculate the difference between the area of the square and the circle.

Correct answer:

x =  30.9027 cm2

Step-by-step explanation:

a=12 cm S1=a2=122=144 cm2  r=a/2=12/2=6 cm  S2=π r2=3.1416 62113.0973 cm2  x=S1S2=144113.0973=30.9027 cm2

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