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Changing Scales in Scale Drawing Practice

Changing Scales in Scale Drawing Practice
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2020-07-20 18:58
PolygonVectorGeometric Construction
This example demonstrates the geometric construction process of changing scales in scale drawings, involving core math concepts like ratios, similar figures, and vector operations. It uses GeoGebra commands such as Point, UnitOrthogonalVector, UnitVector, and Polygon for creating points, vectors, and polygons. Suitable for middle school and above students learning scale drawings and geometric transformations.

GeoGebra Commands & Parameters

  1. Point(Circle[A_1, ruler]) → A_6
  2. UnitOrthogonalVector(Segment[A_1, A_6]) → v
  3. UnitVector(Segment[A_1, A_6]) → u
  4. Polygon(A_1, A_2, A_3, A_4, A_5, A_6) → poly1, a_3, a_4, a_5, a_6, a_7, a_8

AI Drawing Prompt Reference

Draw a circle and select a point on it as the starting point. From this point, draw a line segment and calculate its unit vector and unit orthogonal vector. Then, use these six points (including the center of the circle and the endpoints of the segment) to draw a hexagon.
The prompt above was compiled from the original drawing commands and is for reference only.