Question 1169593
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<pre>

Two semicircle areas together comprise the entire circle,


and its diameter is equal to the width of the gym, i.e.

     {{{(120-2*40)/2}}} = {{{(120-80)/2}}} = {{{40/2}}} = 20 meters.


So, all you need is to find the area of a circle having the radius of 10 meters.


It is  {{{100pi}}} square meters.    <U>ANSWER</U>
</pre>

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