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Perimeter Exercise #1

Perimeter Exercise #1
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2017-01-22 21:15
PolygonCoordinate GeometryGeometric Construction
This example demonstrates the calculation and drawing of polygon perimeters. Key math concepts include perimeter, polygons, and coordinate geometry. It uses GeoGebra commands like Polygon and Segment to construct objects such as P_{22}, P_{23}, P_{24}, and poly1. Suitable for middle school and above students learning and practicing polygon perimeter calculations and constructions.

GeoGebra Commands & Parameters

  1. Polygon(A, B, K, L, C, D, E, F, G, H, I, J) → poly1, c, l, m, n, d, e, f, g, h, i, j, k
  2. Segment((x(Q_{25}) - 4 / 2, y(Q_{25})), (x(Q_{25}) + 4 / 2, y(Q_{25}))) → b_{25}
  3. Segment((x(P_{24}), y(P_{24}) - 5 / 2), (x(P_{24}), y(P_{24}) + 5 / 2)) → a_{24}
  4. Segment((x(Q_1) - 1 / 2, y(Q_1)), (x(Q_1) + 1 / 2, y(Q_1))) → b_1
  5. Segment((x(Q_{22}) - 1 / 2, y(Q_{22})), (x(Q_{22}) + 1 / 2, y(Q_{22}))) → b_{22}
  6. Segment((x(Q_{23}) - 3 / 2, y(Q_{23})), (x(Q_{23}) + 3 / 2, y(Q_{23}))) → b_{23}
  7. Segment((x(Q_2) - 2 / 2, y(Q_2)), (x(Q_2) + 2 / 2, y(Q_2))) → b_2
  8. Segment((x(Q_3) - 1 / 2, y(Q_3)), (x(Q_3) + 1 / 2, y(Q_3))) → b_3
  9. Segment((x(P_{23}), y(P_{23}) - 2 / 2), (x(P_{23}), y(P_{23}) + 2 / 2)) → a_{23}
  10. Segment((x(P_3), y(P_3) - 2 / 2), (x(P_3), y(P_3) + 2 / 2)) → a_3
  11. Segment((x(P_{22}), y(P_{22}) - 5 / 2), (x(P_{22}), y(P_{22}) + 5 / 2)) → a_{22}
  12. Segment((x(P_5), y(P_5) - 1 / 2), (x(P_5), y(P_5) + 1 / 2)) → a_2
  13. Segment((x(P_4), y(P_4) - 1 / 2), (x(P_4), y(P_4) + 1 / 2)) → a_1