Triangles, and also pyramids, have been popular designs in construction due to their steady bases. As an example of this, the Trans America building in San Francisco was built in a pyramid shape in the earthquake prone city.
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Triangles are used in construction because they are the most stable structure type. The angles take in weight and spread it throughout the sides of the triangle, so the weight is balanced out.
The centre of balance is at the point where the medians of the triangle intersect.
The centre of balance is at the point where the medians of the triangle intersect.
equilateral triangle ;)
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