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PodcastQuadrilaterals that don't come up short on area!
While the formula for the area of an arbitrary triangle has been known for a long time, that of an arbitrary quadrilateral took longer to emerge. Yet the two formulas share a kinship — visual, if nothing else — that is quite fascinating.
PodcastPeano by his great-niece | Tangente
Alongside official biographies, family accounts offer other glimpses into figures known mainly through their work. Lalla Romano, the celebrated Italian author, bears witness to her intellectual closeness with her great-uncle, Giuseppe Peano.
PodcastMathematics at school | Tangente
Worrying results show that attainment among young French pupils continues to decline, and new baccalauréat examinations in the penultimate year of high school aim to rekindle high school students' enthusiasm for mathematics.