Invariance of a triangle's area

Topic:Area

The applet illustrates the conservation of the area of the triangle ABC1 (or ABC2) while dragging points C1 (or C2) on the line k (k parallel to l). In addition, invariance of the property S1 = S2.

New Resources

Writing and Graphing Proportional Relationships (k>0)
Marion's Theorem
Right Triangle Inscribed in a Semicircle
Modifiable Right Triangular Prism
Midpoint Theorem (V2): Integer Solutions

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Figure 4 Centers of squares on parallelograms
Inner Circle
ZachCullison(practice Quiz)
Untitled
ベクトルの加法　練習

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Reflection
Quadratic Equations
Division
Random Experiments
Percentages