58.1.b

Michael T. Bendorf - 26 Sept 2006

GeoGebra Drawing Pad

No. Name Definition Algebra
1 Point A   A = (8.97, 29.6)
2 Point B   B = (5.97, 20.2)
3 Point C   C = (16.37, 22.43)
4 Line a Line through B, A a: -9.4x + 3y = 4.51
5 Line b Line through A, C b: 7.17x + 7.4y = 283.3
6 Line c Line through C, B c: 2.23x - 10.4y = -196.75
7 Circle d Circle with center A through C d: (x - 8.97)² + (y - 29.6)² = 106.12
8 Circle e Circle with center C through A e: (x - 16.37)² + (y - 22.43)² = 106.12
9 Point D intersection point of d, e D = (18.87, 32.43)
10 Line f Line through D perpendicular to b f: -7.4x + 7.17y = 92.72
11 Point E intersection point of b, f E = (12.67, 26.02)
12 Circle g Circle with center A through B g: (x - 8.97)² + (y - 29.6)² = 97.36
13 Circle h Circle with center B through A h: (x - 5.97)² + (y - 20.2)² = 97.36
14 Point F intersection point of g, h F = (-0.67, 27.5)
15 Line i Line through F perpendicular to a i: -3x - 9.4y = -256.46
16 Point G intersection point of a, i G = (7.47, 24.9)
17 Circle k Circle with center B through C k: (x - 5.97)² + (y - 20.2)² = 113.15
18 Circle p Circle with center C through B p: (x - 16.37)² + (y - 22.43)² = 113.15
19 Point H intersection point of k, p H = (13.1, 12.31)
20 Line j Line through H perpendicular to c j: 10.4x + 2.23y = 163.74
21 Point I intersection point of c, j I = (11.17, 21.32)
22 Circle q Circle with center E through A q: (x - 12.67)² + (y - 26.02)² = 26.53
23 Circle r Circle with center I through C r: (x - 11.17)² + (y - 21.32)² = 28.29
24 Circle s Circle with center G through B s: (x - 7.47)² + (y - 24.9)² = 24.34
25 Segment l Segment[A, C] l = 10.3
26 Segment m Segment[C, B] m = 10.64
27 Segment n Segment[B, A] n = 9.87
28 Angle α Angle between C, B, A α = 60.18°
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