Similar Triangle Shadow Calculation

Loading the math board and drawing, please wait…

2013-11-19 23:22

In collections Similar Triangles Review

This example demonstrates how to use similar triangles to calculate shadow lengths using GeoGebra. It involves core math concepts like triangle similarity, proportionality, and geometric constructions. The construction uses commands such as Line, Intersect, Segment, Vector, and objects like Textfield and Midpoint. Ideal for middle school and above, this tool aids in geometric practice and introductory mathematical modeling.

GeoGebra Commands & Parameters

Line(B, D) → b
Intersect(b, xAxis) → E
Segment(D, C) → c
Vector(B, D) → u
Vector(C, E) → v
Textfield(inputAnswer) → inputBox1
Segment(E, D) → d
Segment(C, D) → e
Segment(B, A) → f
Segment(A, E) → g
Midpoint(A, C) → F
Midpoint(C, E) → G