document.write( "Question 131351: A central angle intercepts an arc on a circle equal in length to the diameter of a circle. Find the measure, in radians, of the central angle. \n" ); document.write( "

Algebra.Com's Answer #95883 by josmiceli(19441) $\"\"$ $\"About$

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There are $\"2%2Api\"$ radians in a circle.
\n" ); document.write( "The circumference, $\"C\"$ of a circle is $\"C+=+pi%2Ad\"$ where
\n" ); document.write( " $\"d\"$ is the diameter
\n" ); document.write( "The fraction of the circumference of an arc which is $\"d\"$ in
\n" ); document.write( "length is $\"d%2F%28pi%2Ad%29+=+1%2Fpi\"$
\n" ); document.write( "The fraction of $\"2%2Api\"$ radians of this arc is
\n" ); document.write( " $\"%281%2Fpi%29%2A2%2Api+=+2\"$ radians
\n" ); document.write( "The measure, in radians, of the central angle = $\"2\"$ \n" ); document.write( "

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