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\n" ); document.write( "\n" ); document.write( "Draw a circle C on a plane. Put n distinct points on the circunference of C....\r
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Algebra.Com's Answer #652781 by Edwin McCravy(20065)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "c1 = 0 because there are no chords\r\n" );
document.write( "i1 = 0 because there are no chords to intersect.\r\n" );
document.write( "r1 = 1 because there is only 1 region bounded by an arc,\r\n" );
document.write( "     (where the arc is the whole circle!)\r\n" );
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document.write( "c2 = 1 because there is 1 chord\r\n" );
document.write( "i2 = 0 because there is only 1 chord, so no chords intersect.\r\n" );
document.write( "r2 = 2 because there are two regions, 1 on each side of the chord.\r\n" );
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document.write( "c3 = 3 because there are 3 chords.\r\n" );
document.write( "i3 = 0 because none of the chords intersect inside the circle.\r\n" );
document.write( "r3 = 4 because there are 4 regions, a triangle, and 3 D-shaped \r\n" );
document.write( "     circle segments.\r\n" );
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document.write( "c4 = 6 because there are 6 chords.\r\n" );
document.write( "i4 = 1 because there are two chords which intersect at 1 point\r\n" );
document.write( "     inside the circle.  [We do not count where they intersect\r\n" );
document.write( "     at the vertices, because they are ON the circle, not INSIDE.]\r\n" );
document.write( "r4 = 8 because there are 4 regions, 4 triangles, and 4 D-shaped \r\n" );
document.write( "     circle segments.\r\n" );
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document.write( "c5 = 10, because there are 10 chords.\r\n" );
document.write( "i5 = 5, because there are 5 intersection points inside the circle.\r\n" );
document.write( "r5 = 16, because there are 10 triangles, one pentagon in the middle, and\r\n" );
document.write( "         5 D-shaped circle segments around the edges of the big pentagon.\r\n" );
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document.write( "c6 = 15 because there are 15 chords.\r\n" );
document.write( "i6 = 15 intersections because there are 15 intersections inside the circle.\r\n" );
document.write( "r6 = 31 regions because there are 3 pentagons, 3 quadrilaterals,  \r\n" );
document.write( "     19 triangles, and 6 D-shaped circle segments.\r\n" );
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document.write( "\"c%5Bn%5D=%28matrix%282%2C1%2Cn%2C2%29%29\"\r\n" );
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document.write( "\"i%5Bn%5D=%28matrix%282%2C1%2Cn%2C4%29%29\"\r\n" );
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document.write( "Edwin

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