document.write( "Question 964023: My problem is figuring out a countersink hole in a sheet of .048 inch thick, countersink is 100 degree's, top of hole to be .220 inch. How might I figure the dimension of the hole at the bottom of the .048 sheet?
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\n" ); document.write( " \ 100 DEG /
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\n" ); document.write( " .220
\n" ); document.write( " _______
\n" ); document.write( " \_____/ .048\r
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Algebra.Com's Answer #588932 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
The hole diameter on top of the sheet is 0.220.
\n" ); document.write( "The angle is 100.
\n" ); document.write( "The thickness is 0.048.
\n" ); document.write( "Let's call the hole diameter on bottom of the sheet \"D\".
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\n" ); document.write( "From the diagram,
\n" ); document.write( "\"A=50\"
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\n" ); document.write( "\"D%2Bx%2Bx=0.220\"
\n" ); document.write( "\"D%2B2x=0.220\"
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( "\"tan%28A%29=x%2F0.048\"
\n" ); document.write( "\"x=0.048tan%2850%29\"
\n" ); document.write( "\"x=0.0572\"
\n" ); document.write( "So then,
\n" ); document.write( "\"D%2B2%280.0572%29=0.220\"
\n" ); document.write( "\"D=0.220-0.1144\"
\n" ); document.write( "\"D=0.106\"
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