Question 1197622
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You try to re-tell the problem in your own words, but some important details remain unclear.


Does this problem have a standard formulation in the textbook ?



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OK, I got a comment/(an info) from you describing your problem.


<pre>
So, our puddle grows from zero, so the radius is  

      r = 0.1*t,  where the radius r is in centimeters and time t is in minutes.



The area of the puddle is the area of the circle

    area = {{{pi*r^2}}} = {{{3.14*(0.1t)^2}}} = {{{3.14*0.01*t^2}}} = {{{0.8314*t^2}}}.
</pre>

Is everything clear to you so far ?