document.write( "Question 196711: Figure 3-A shows a square inscribed in a circle. The area of the square is 64 square centimeters. Determine the area of the shaded portion of the circle.\r
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\n" ); document.write( "\n" ); document.write( "If the area of the square is 64 square centimeters, what is the measure of each side of the square?\r
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\n" ); document.write( "\n" ); document.write( "How might you use the measurement of the sides of the square to determine the diameter (or radius) of the circle?\r
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\n" ); document.write( "\n" ); document.write( "How will knowing the measure of the diameter (or radius) of the circle help you determine the area of the shaded region?
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Algebra.Com's Answer #147446 by RAY100(1637)\"\" \"About 
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Rough sketch helps,,,this shows a circle with a square inside
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\n" ); document.write( "If area of square is 64,, A=s^2, s=8 cm
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\n" ); document.write( "If sides = 8, diagonal = sqrt( 8^2 +8^20 = 8sqrt2 = 11.314
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\n" ); document.write( "Diagonal of square = twice radius of circle,, radius = 4sqrt2, = 5.657
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\n" ); document.write( "Area of circle = pi r^2 = pi * (4sqrt2)^2 = 100.53
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\n" ); document.write( "Area of shaded = Area of circle - Area of square = 100.53 -64 = 36.53
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