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GeoGebra Classroom

green & red circles

Autore:Maurice OReilly

Argomento:Area, Circonferenza, Pitagora o teorema di Pitagora, Rettangolo, Rette tangenti

Move pink cross. Observe, describe, estimate, measure, conjecture. What depends on what? Apply Pythagoras ... It the pink cross has coordinates

, then the radius of the red circle is

. Check this ...

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