All the land tortoise species formed a tight cluster of points in the upper part of the triangle; all the water turtles cluster in the lower part of the triangular graph.

所有陆龟品种都在三角形的上部形成一个紧密的点群；所有的水龟都聚集在三角图的下方。

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For example, Odebrecht and other firms building the stadiums for the main Olympic Park on a triangle of land jutting into a lagoon south of the city earn the right to develop half the land once the Games end.

WSJ: Rio Hopes for an Olympic-Style Revival

It had also led to a war with Mexico, by which the United States acquired a huge triangle of land bounded by California and Texas.

ECONOMIST: THE WAR OF 1898