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Rectangle Perimeter and Area

Rectangle Perimeter and Area
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2017-08-29 03:46
PolygonCoordinate Geometry
This example demonstrates the calculation of perimeter and area for a rectangle. Key math concepts include perimeter, area, rectangle properties, geometric transformations, linear regression, incircle, and correlation. It utilizes GeoGebra commands like Sort, Polygon, Sequence, Rotate, Flatten, Max, along with objects such as panneeded, panner, permtimer, B, A, D, C, xvalues, xmin, yvalues, ymin, poly1, a, d, b, c, and lists like list8, list5, list7, list12, list6, list13, F, list14, list11, E, Area, perm, button1, button2, opacity, arealist, list1, areatimer, list2, list3, list4, e, areanumbers, list9. Suitable for middle school students and math enthusiasts learning geometric calculations and transformations.

GeoGebra Commands & Parameters

  1. Sort({x(A), x(B), x(C), x(D)}) → xvalues
  2. Sort({y(A), y(B), y(C), y(D)}) → yvalues
  3. Polygon(A, D, B, C) → poly1, a, d, b, c
  4. Sequence(Point[{xmin + c - i, ymin}], i, 1, c) → list8
  5. Sequence(Point[{xmin, ymin + i}], i, 0, a) → list5
  6. Sequence(Rotate[Point[{xmin + c, ymin + a - i}], (permtimer * ((-π)) / 2), (xmin + c, ymin)], i, 1, a) → list7
  7. Rotate(list5, (permtimer * ((-π)) / 2), list7(a)) → list12
  8. Sequence(Rotate[Point[{xmin + i, ymin + a}], (permtimer * ((-π)) / 2), list7(a)], i, 1, c) → list6
  9. Rotate(list12, (permtimer * ((-π)) / 2), list6(c)) → list13
  10. Rotate(list13, (permtimer * ((-π)) / 2), F) → list14
  11. Rotate(list6, (permtimer * ((-π)) / 2), list6(c)) → list11
  12. Sequence(Point[{Min[xvalues] + i, Min[yvalues] - 4}], i, 0, Area - 1) → arealist
  13. Flatten(Sequence[Sequence[Point[{Min[xvalues] + i, Min[yvalues] + j}], i, 0, c - 1], j, 0, a - 1]) → list1
  14. Sequence((list1(i) * (1 - areatimer)) + (arealist(i) * areatimer), i, 1, Area) → list2
  15. Sequence(Polygon[list2(i), list2(i) + (1, 0), 4], i, 1, Area) → list3
  16. Sequence(Polygon[arealist(i), arealist(i) + (1, 0), 4], i, 1, Area) → list4
  17. Sequence(Text[i, arealist(i) + (0.1, 0.2)], i, 1, Area) → areanumbers
  18. Flatten({Reverse[list8], Reverse[list7], Reverse[list11], Reverse[list14]}) → list9
  19. Sequence(Point[{Min[xvalues] + i, Min[yvalues] - 2}], i, 0, perm) → permlist
  20. Sequence((permlist(i) * permmover) + (list9(i) * (1 - permmover)), i, 1, Length[list9]) → list10
  21. Sequence(Segment[list10(i), list10(i + 1)], i, 1, perm) → list15
  22. Max(a + 1, ((R - L) * 17.4 / 32) + BOT) → T