document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=979185>Question 979185</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help Which of the following are always,sometimes or never true. Examples to show would be very helpful:\r<BR>\n" );
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document.write( "If you double the radius of a circle the area doubles ?<BR>\n" );
document.write( "If you double the radius the circumference doubles?<BR>\n" );
document.write( "If you double the edges of a cuboid the volume doubles?<BR>\n" );
document.write( "If you double the edges the surface area doubles?\r<BR>\n" );
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document.write( "If you double the sides of a rectangle the area doubles? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #600478 by </B><A HREF=/tutors/aboutme.mpl?userid=anand429><B>anand429(138)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=anand429><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=anand429><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=600478\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Area of a circle = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=pi%2Ar%5E2 ALIGN=MIDDLE  ALT=\"pi%2Ar%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > =A (say)<BR>\n" );
document.write( "so,if radius is doubled,<BR>\n" );
document.write( "New Area = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=pi%2A%282r%29%5E2 ALIGN=MIDDLE  ALT=\"pi%2A%282r%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4%2Api%2Ar%5E2 ALIGN=MIDDLE  ALT=\"4%2Api%2Ar%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > =4A<BR>\n" );
document.write( "Hence area becomes 4 times and not double,<BR>\n" );
document.write( "So 1st statement is wrong.\r<BR>\n" );
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document.write( "Circumference = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2Api%2Ar ALIGN=MIDDLE  ALT=\"2%2Api%2Ar\"   DISABLED_style= \"max-width:90%; height:auto;\" > =C (say)<BR>\n" );
document.write( "so, if radius is doubled,<BR>\n" );
document.write( "New circumference = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2Api%2A2r ALIGN=MIDDLE  ALT=\"2%2Api%2A2r\"   DISABLED_style= \"max-width:90%; height:auto;\" > =2C<BR>\n" );
document.write( "Hence, circumference is doubled,<BR>\n" );
document.write( "Statement 2 is true for all cases.\r<BR>\n" );
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document.write( "Volume of cuboid(with sides a,b,c) = a*b*c = V (say)<BR>\n" );
document.write( "If edges are doubled,<BR>\n" );
document.write( "New volume = 2a*2b*2c =8abc = 8V<BR>\n" );
document.write( "Hence, Statement 3 is wrong.\r<BR>\n" );
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document.write( "Similarly, follow for others.\r<BR>\n" );
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