Perimeter 81600

The radius of the circular bed is 2 m. Around it is an area filled with sand, the border of which is formed by the sides of a square with a length of 5 m and the bed's perimeter. Calculate the volume of the area covered with sand.

Correct answer:

S =  12.4336 m2

Step-by-step explanation:

r=2 m a=5 m  S1=π r2=3.1416 2212.5664 m2 S2=a2=52=25 m2  S=S2S1=2512.5664=12.4336 m2

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