document.write( "Question 1197553: The entrance hall of an office building is constructed in the shape of a sector with a 17-ft radius and a 120 degree central angle. How many sq. yards of carpet should be purchased? Round your answer to 2 decimal places if necessary. \n" ); document.write( "
Algebra.Com's Answer #830865 by ikleyn(52781)\"\" \"About 
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document.write( "The area of the hall = \"%28R%5E2%2Aalpha%29%2F2\",  where \"alpha\"  is the central angle in radians.\r\n" );
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document.write( "\"alpha\" = \"2%2Api%2A%28120%2F360%29\" = \"%282%2F3%29%2Api\" = \"%282%2F3%29%2A3.14\" = 2.093333333 radians,  therefore\r\n" );
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document.write( "the area of the hall = \"%2817%5E2%2A2.093333333%29%2F2\" = 302.4867 square feet  (rounded).   ANSWER\r\n" );
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