document.write( "Question 1194390: Find the radius of a circle with an area of 100in^2 (using quadratic equations) \n" ); document.write( "
Algebra.Com's Answer #826644 by MathTherapy(10552)\"\" \"About 
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Find the radius of a circle with an area of 100in^2 (using quadratic equations)
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Quadratic equation formula? WHY?\r\n" );
document.write( "Anyway, we get: \r\n" );
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document.write( "Quadratic equation formula: \"matrix%281%2C3%2C+r%2C+%22=%22%2C+%28-+b+%2B-+sqrt%28b%5E2+-+4ac%29%29%2F%282a%29%29\", where: \"matrix%283%2C3%2C+a%2C+%22=%22%2C+pi%2C+b%2C+%22=%22%2C+0%2C+c%2C+%22=%22%2C+100%29\"\r\n" );
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document.write( "Should be pretty easy for you to substitute and calculate to find your answer, after IGNORING the negative value.
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