document.write( "Question 1203594: Juan cut out a polygon with scissors and card board. All the angles in the polygon were acute. What type of polygon could he have drawn?\r
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document.write( "A. pentagon
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document.write( "B. octagon
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document.write( "C. triangle (correct answer)
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document.write( "D. hexagon\r
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document.write( "I need to know how to determine the correct answer. \n" );
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Algebra.Com's Answer #839265 by greenestamps(13200)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "\"acute\" means the measure of an angle is less than 90 degrees. \n" ); document.write( "For a triangle, the sum of the angle measures is 180 degrees, so the average of the angle measures is 180/3 = 60 degrees. Since that is less than 90 degrees, the polygon he drew could have been a triangle. \n" ); document.write( "For a quadrilateral, the sum of the angle measures is 360 degrees, so the average of the angle measures is 360/4 = 90 degrees. Since that is not less than 90 degrees, the polygon he drew could not have been a quadrilateral. \n" ); document.write( "For polygons with more than 4 sides, the average of the angle measures is always greater then 90 degrees, so it is not possible that the polygon he drew has more then 4 sides. \n" ); document.write( "ANSWER: triangle \n" ); document.write( " \n" ); document.write( " |