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Finding Missing Lengths in Similar Triangles

Finding Missing Lengths in Similar Triangles
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2015-01-26 22:25
TriangleGeometric Construction
This GeoGebra worksheet demonstrates how to calculate a missing side length in a triangle when given a similar triangle. It covers key math concepts like similarity properties, ratios, and proportionality. The construction uses commands such as Polygon, Dilate, and Distance. Suitable for middle school and above, it's ideal for classroom instruction or self-study in geometry and ratios.

GeoGebra Commands & Parameters

  1. Polygon(A, B, C) → poly1, c, a, b
  2. Dilate(A, r, D_1) → D
  3. Dilate(B, r, D_1) → E
  4. Dilate(C, r, D_1) → F
  5. Polygon(D, E, F) → poly1', c', a', b'
  6. Distance(b, c) → d