document.write( "Question 1117755: A circular sector AOB, centre O and radius 8 cm, contains an angle of $\"3pi%2F4\"$ radians at the centre. The straight edges OA and OB are joined to form a right circular cone. Find the exact value of the curved surface area of the cone. \n" ); document.write( "

Algebra.Com's Answer #732884 by josmiceli(19441) $\"\"$ $\"About$

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$\"+%28+3%2Api%2F4+%29+%2F+%28+8%2Api%2F4+%29+=+3%2F8+\"$
\n" ); document.write( "The area of the whole circle is:
\n" ); document.write( " $\"+pi%2Ar%5E2+=+pi%2A64+\"$
\n" ); document.write( "and
\n" ); document.write( " $\"+%283%2F8%29%2A64pi+=+24pi+\"$
\n" ); document.write( "The area of the sides of the right circular cone is 24pi
\n" ); document.write( " \n" ); document.write( "

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