document.write( "Question 970174: A chord of a circle is 24cm long.If the chord is 5cm from th centre of the circle,calculate the radius of the circle. \n" ); document.write( "

Algebra.Com's Answer #592900 by josmiceli(19441) $\"\"$ $\"About$

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Draw a line from the center of the circle to
\n" ); document.write( "the center of the chord
\n" ); document.write( "A right triangle is formed by:
\n" ); document.write( "(a) The line from the center of the circle
\n" ); document.write( "(b) 1/2 of the chord
\n" ); document.write( "(c) The radius ( hypotenuse )
\n" ); document.write( "---------------------------
\n" ); document.write( "The legs are: $\"+5+\"$ and $\"+24%2F2+=+12+\"$
\n" ); document.write( "Let $\"+r+\"$ = radius
\n" ); document.write( " $\"+r%5E2+=+5%5E2+%2B+12%5E2+\"$
\n" ); document.write( " $\"+r%5E2+=+25+%2B+144+\"$
\n" ); document.write( " $\"+r%5E2+=+169+\"$
\n" ); document.write( " $\"+r+=+13+\"$
\n" ); document.write( "The radius is 13 cm
\n" ); document.write( " \n" ); document.write( "

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