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Circle Terms

Circle Terms
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2017-12-20 03:53
CircleGeometric ConstructionSlider Animation
In collections Unit 9 - Circles
This example demonstrates the basic geometric properties and terms of a circle, involving core math concepts like circle, terms, fractions, parabola, rectangle, means, and angles. It is constructed using commands like Polygon, Circle, Point, Segment, and is suitable for middle school and above students learning geometric figures.

GeoGebra Commands & Parameters

  1. Polygon((6.5, 4), (8.5, 4), (8.5, 0), (6.5, 0)) → TermBox, f, g, h, i
  2. Circle(O, r) → Circ
  3. Point(Circle[O, r]) → A
  4. Segment(O, A) → Rad
  5. Segment(((-r), 0), (r, 0)) → Diam
  6. Polygon(Point1, Point1 + (2, 0), Point1 + (2, -0.75), Point1 + (0, -0.75)) → DragBox1, point1, j, k, l
  7. Polygon(Point2, Point2 + (2, 0), Point2 + (2, -0.75), Point2 + (0, -0.75)) → DragBox2, point2, m, n, p
  8. Polygon(Point3, Point3 + (2, 0), Point3 + (2, -0.75), Point3 + (0, -0.75)) → DragBox3, point3, q, s, t
  9. Polygon((-5, 2), (-3, 2), (-3, 1), (-5, 1)) → AnsBox2, d, e, f_1, g_1
  10. Polygon(Point4, Point4 + (2, 0), Point4 + (2, -0.75), Point4 + (0, -0.75)) → DragBox4, point4, a, b, c
  11. Polygon((3, 3), (5, 3), (5, 2), (3, 2)) → AnsBox4, h_1, i_1, j_1, k_1
  12. Polygon((-5, -2), (-3, -2), (-3, -3), (-5, -3)) → AnsBox1, l_1, m_1, n_1, p_1
  13. Polygon((3, -1), (5, -1), (5, -2), (3, -2)) → AnsBox3, q_1, r_1, s_1, t_1
  14. Segment((-3, -2), ArrowPoint1) → Arrow1
  15. Segment(ArrowPoint3, (3, -1)) → Arrow3
  16. Segment((3, 2), ArrowPoint4) → Arrow4
  17. Segment((-3, 1), ArrowPoint2) → Arrow2
  18. Polygon((-5, 2), (-3, 2), (-3, 1), (-5, 1)) → AnsBox2Fill, e_1, f_2, g_2, h_2
  19. Polygon((-5, -2), (-3, -2), (-3, -3), (-5, -3)) → AnsBox1Fill, a_1, b_1, c_1, d_1
  20. Polygon((3, -1), (5, -1), (5, -2), (3, -2)) → AnsBox3Fill, i_2, j_2, k_2, l_2
  21. Polygon((3, 3), (5, 3), (5, 2), (3, 2)) → AnsBox4Fill, m_2, n_2, p_2, q_2