LUKISAN BANGUN DUA DIMENSI HEXAGON 1 PENTAGON 2 Kelengkungan lingkaran menyinggung garis R T ACUTE ANGLE T C C C R R T T 3 R OBTUSE ANGLE R C C R T C R T R T T 4 Garis singgung lingkaran dengan lingkaran B B B R A A A C T R C T R EXAMPLE I II III (b) 5 C C R T R B A T B A B A R (a) I II III 6 EXAMPLE O O R C A B R B A O O T T C C R A T B A T B 7 • Ellips P OR 1 MAJ 2 S AXI P1 A E FOCUS O F FOCUS B A E 1 2 MAJ OR AXI S MAJOR AXIS O FOCUS FOCUS MAJOR C AXIS C G D D F B H (a) (b) PIN AND STRING METHOD AXES AND FOCI 8
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