document.write( "Question 473275: How to find d in simplest radical form in a right circular cone shape that has a radius of 3 and height of 3 and letter d outside the cone. Thanks in advance.\r
\n" ); document.write( "\n" ); document.write( "a. sq root 6
\n" ); document.write( "b. 3 sq root of 2
\n" ); document.write( "c. 18
\n" ); document.write( "d. 6
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Algebra.Com's Answer #324554 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
If you take a cross section of the cone, and you cut that cross section in half, you'll get the picture\r
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\n" ); document.write( "\n" ); document.write( "Note: Imagine spinning this triangle about the left side (as if it were a pole lodged in the ground). Doing so will generate the cone.\r
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\n" ); document.write( "\n" ); document.write( "To find the unknown length x, we need to use the Pythagorean Theorem.\r
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\n" ); document.write( "\n" ); document.write( "Remember, the Pythagorean Theorem is \"a%5E2%2Bb%5E2=c%5E2\" where \"a\" and \"b\" are the legs of a triangle and \"c\" is the hypotenuse.\r
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\n" ); document.write( "\n" ); document.write( "Since the legs are \"3\" and \"3\" this means that \"a=3\" and \"b=3\"\r
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\n" ); document.write( "\n" ); document.write( "Also, since the hypotenuse is \"x\", this means that \"c=x\".\r
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\n" ); document.write( "\n" ); document.write( "\"a%5E2%2Bb%5E2=c%5E2\" Start with the Pythagorean theorem.\r
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\n" ); document.write( "\n" ); document.write( "\"3%5E2%2B3%5E2=x%5E2\" Plug in \"a=3\", \"b=3\", \"c=x\" \r
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\n" ); document.write( "\n" ); document.write( "\"9%2B3%5E2=x%5E2\" Square \"3\" to get \"9\".\r
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\n" ); document.write( "\n" ); document.write( "\"9%2B9=x%5E2\" Square \"3\" to get \"9\".\r
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\n" ); document.write( "\n" ); document.write( "\"18=x%5E2\" Combine like terms.\r
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\n" ); document.write( "\n" ); document.write( "\"x%5E2=18\" Rearrange the equation.\r
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\n" ); document.write( "\n" ); document.write( "\"x=sqrt%2818%29\" Take the square root of both sides. Note: only the positive square root is considered (since a negative length doesn't make sense).\r
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\n" ); document.write( "\n" ); document.write( "\"x=3%2Asqrt%282%29\" Simplify the square root.\r
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\n" ); document.write( "\n" ); document.write( "Answer:\r
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\n" ); document.write( "\n" ); document.write( "So the solution is \"x=3%2Asqrt%282%29\", which means that the answer is choice B)
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