Heron's Area Formula

Författare/skapare:johncfischer, GeoGebra Materials Team

Drag the vertices of ΔABC around. Use Heron's formula to calculate the area. Click on the check box to check your answer or to get a hint. Repeat until you get 10 correct, or until you have memorized Heron's formula.

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Cosinus
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Pythagoras eller Pythagoras sats
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