document.write( "Question 1054183: Eddie, Ellie and Erwin are playing a game. Eddie is standing 5 m away from the circle while Erwin is on the circle. Ellie draws a line from Eddie to Erwin which is tangent to the circle. If the distance between Eddie is 10 m away from Erwin, find the radius of the circle. \n" ); document.write( "

Algebra.Com's Answer #669556 by ikleyn(52798) $\"\"$ $\"About$

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\n" ); document.write( "Eddie, Ellie and Erwin are playing a game. Eddie is standing 5 m away from the circle while Erwin is on the circle.
\n" ); document.write( "Ellie draws a line from Eddie to Erwin which is tangent to the circle. If the distance between Eddie is 10 m away from Erwin,
\n" ); document.write( "find the radius of the circle.
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document.write( "Make a sketch.\r\n" );
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document.write( "Let x = \"the radius of the circle\".\r\n" );
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document.write( "The tangent to a circle is perpendicular to the radius drawn to the tangent point. It gives an equation\r\n" );
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document.write( " = .\r\n" );
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document.write( "Solve for x: x = 7.5.\r\n" );
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document.write( "Right-angled triangle (7.5, 10, 12.5), similar to (3,4,5) right angled triangle. \r\n" );
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