<p>I'm on page 209, the example where you are trying to find the are of the cylinder.</p>
<p>It basically says that the area is 1000pi^3 but you need to find the value of the radius. The answer, if the height is 10, it says should be 10pi.</p>
<p>Shouldn't it be 10pi^2 though in order to get the pi^3? It even states that you need two factors of pi from r^2 which confuses. I'm pretty sure I'm just missing something here as it's unlikely there is an error that they actually write out twice so could someone explain this to me?</p>
<p>"are" of a cylinder? Do you mean Area, and actually shouldn't it be VOLUME? I'm still a little confused(could you give the actual question?).Let's just say that "#"=PI, makes it easier. The VOLUME is 1000#. It says that the height is 10, so then the area of the circle=100#. So radius =10? Am I following your question right? I just can't visualize this. Is the height 10#? The area of the circle should be 100#?</p>
<p>yeah, sorry about that, I'm really out of it with classes just starting and all the other stuff I got going on.</p>
<p>it should be volume, the height of the cylinder is 10, the radius of the circle at the bottom is r(not given) and the volume is supposed to be 1000#^3</p>
<p>I know that the answer needs to have a 10#^x in it but I am confused about whether the radius needs to have just # or #^2 in order for it the equal 1000#^3.</p>
<p>Sorry, I know this is confusing, I wish I could just post the picture but if you have the book it's on page 208. thanks.</p>
<ol>
<li>volume = 1000#^3, height = 10 </li>
<li>volume = height * area of circular base</li>
<li>area of circular base = 100#^3</li>
<li>formula for area of circle = # * r^2</li>
<li>100#^3 = #*r^2, divide # from each side</li>
<li>100#^2 = r ^2 , square root each side</li>
<li>10# = r</li>
</ol>