document.write( "Question 952115: PLEASE HELP!\r
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document.write( "An equilateral triangle is inscribed in a circle with a radius of 6 ft. Find the area of the shaded region shown. Give the exact answer. (Do not approximate
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document.write( "π or any square root.) \n" );
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Algebra.Com's Answer #581467 by rothauserc(4718)![]() ![]() You can put this solution on YOUR website! Where is the shaded region? \n" ); document.write( "**************** \n" ); document.write( "student answer \n" ); document.write( "Its a circle with a triangle in the middle. The shaded region is the area around the triangle \n" ); document.write( "*************** \n" ); document.write( "The area of the circle = pi*r^2 = pi*6^2 = 36*pi \n" ); document.write( "The side(s) of the equilateral triangle is calculated \n" ); document.write( "s = square root(3)*r, where r is the radius of the circle \n" ); document.write( "s = 6*square root(3) \n" ); document.write( "************** \n" ); document.write( "The height(h) of the equilateral triangle is calculated using the pythagorean theorem, \n" ); document.write( "ap^2 + (3*square root(3))^2 = 6^2, where ap is the apothem of the equilateral triangle \n" ); document.write( "ap^2 = 36 - 27 = 9 \n" ); document.write( "ap = 3 \n" ); document.write( "h = 6 + 3 = 9 \n" ); document.write( "************** \n" ); document.write( "area of triangle = (1/2) * (6*square root(3)) * 9 \n" ); document.write( "area of triangle = 27*square root(3) \n" ); document.write( "************** \n" ); document.write( "area of shaded area = (36*pi) - (27*square root(3) )\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |