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Area Increase per 1 Unit Change in L or W

Area Increase per 1 Unit Change in L or W
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2017-07-18 03:40
PolygonCoordinate GeometryGeometric Construction
In collections Rate & Accumulation Yr 4 Much&Fast
This example demonstrates the increase in the area of a parallelogram when the length or width changes by 1 unit. Key mathematical concepts include area calculation and linear changes. Using GeoGebra commands such as Point, Segment, Polygon, etc., the dynamic change in area can be observed. Suitable for students at the junior high school level and above to learn about geometric transformations and area calculation.

GeoGebra Commands & Parameters

  1. Point(Circle[A, width]) → B
  2. Segment(A, B) → f
  3. OrthogonalLine(A, f) → g
  4. Circle(A, length) → c
  5. Intersect(c, g) → C, D
  6. OrthogonalLine(B, f) → h
  7. OrthogonalLine(D, g) → i
  8. Intersect(h, i) → E
  9. Polygon(A, B, E, D) → poly1, a, b, e, d
  10. PointIn(poly1) → Pointpoly1