document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=733694>Question 733694</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the surface area<BR>\n" );
document.write( "a. cylinder and cone 6mm, h=10mm, r=4mm\r<BR>\n" );
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document.write( "b. cone r=10mm, h=25mm\r<BR>\n" );
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document.write( "c. square base 50mm, 40mm, 40mm </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #448569 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=448569\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Note that we do not need the 6mm measurement for surface area calculations!\r<BR>\n" );
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document.write( "Surface Area (SA) of cylinder (two ends are circles) formula is\r<BR>\n" );
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document.write( "SA = 2*pi*radius squared + 2*pi*radius*height<BR>\n" );
document.write( "SA = 2*22/7*4 squared + 2*22/7*4*10, therefore SA = 100.6 + 251.4 = 352 square mm's\r<BR>\n" );
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document.write( "Surface area of cone (one end is a circle) formula is\r<BR>\n" );
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document.write( "SA = pi*radius squared + pi * radius * hypotenuse (s)<BR>\n" );
document.write( "first calculate s squared = radius squared + height squared, <BR>\n" );
document.write( "                s squared = 10 squared + 25 squared = 100+625=725<BR>\n" );
document.write( "                s = square root of 725 = 26.9 mm<BR>\n" );
document.write( "SA = 22/7*10 squared + 22/7*10*26.9 = 2200/7 + 22/7*10*26.9=314.3+825.4=1159.7 square mm's\r<BR>\n" );
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document.write( "Surface area of rectangular solid is\r<BR>\n" );
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document.write( "the square base is 40mm by 40mm = 1600 square mm and there are two ends so total for 2 square ends is 3200 square mm\r<BR>\n" );
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document.write( "now there are 4 sides that are 50 by 40 or 2000 square mm * 4 = 8000 square mm\r<BR>\n" );
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document.write( "adding the two calculations\r<BR>\n" );
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document.write( "SA = 3200 + 8000 = 11200 square mm's\r<BR>\n" );
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document.write( " </SPAN>\n" );
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