document.write( "Question 955610: How many square inches of metal are needed to make a soup can that is 2 2/3 in. in diameter and 4 in. high? The answer is (128 pi)/9 in. I'm not sure how to get to that answer. Thank you!!!! \n" ); document.write( "

Algebra.Com's Answer #583795 by Zucchini(70) $\"\"$ $\"About$

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the first thing that should be considered, is that we are thinking f a cylinder. This problem can be done in several steps. The first step that I would take is, find the circumference of the circle. The formula for the circumference of the circle is C = d · Pi, where d is the diameter. I would first convert 2 2/3 into an improper fraction, so it will be 8/3.
\n" ); document.write( "(pi)(8/3)
\n" ); document.write( "8/3 pi.
\n" ); document.write( "Now, we can multiply that by 4 to get the area of the rectangle part of the cylinder.
\n" ); document.write( "(8/3 pi)(4)
\n" ); document.write( "32/3 pi
\n" ); document.write( "Now we will find he area of the two circles: (pi · R^2)
\n" ); document.write( "(pi)((4/3)^2)
\n" ); document.write( "16/9 pi
\n" ); document.write( "To get the area of both of the corcles, we can just multiply that by 2. So, 32/9 pi.
\n" ); document.write( "Now, we just add 32/3 pi and 32/9 pi. In order to do this, we need common denominators. When you get them and add the two numbers, you get 128/9 pi
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