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Visit this site: http://bonsonhos.no.sapo.pt/

Author:David Salvado
Description: See and learn about trigonometry with the freeware program Círculo Trigonométrico 2.0. Also a way of calculating Pi. Veja e aprenda o que é a trigonometria com o programa freeware Círculo Trigonométrico 2.0. Aprenda ainda um modo de calcular o número Pi. Site is in Portuguese.

Levels: High School (9-12)
Languages: Portuguese
Resource Types: Topic Tools Miscellaneous
Math Topics: Pi, Trigonometry
Math Ed Topics: Teaching Styles/Practices

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