In mathematics, Napoleon's theorem states that if equilateral triangles are constructed on the sides of any triangle, either all outward, or all inward, the centres of those equilateral triangles themselves form an equilateral triangle.
Inside and at the center of the equilateral triangle is the traditional golden-yellow sea lion (Ultramar) of the Coat-of-Arms granted to the City of Manila in 1596, on guard with a sword on its right paw, at hilt.
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Inside and at the center of the equilateral triangle is the traditional golden-yellow sea lion (Ultramar) of the Coat-of-Arms granted to the City of Manila in 1596, on guard with a sword on its right paw, at hilt.
The shape Vesica piscis has a major axis: minor axis ratio equal to the square root of three, this can be shown by constructing two equilateral triangles within it.
The Grain Sentry (an equilateral triangle, partly shaded) – The grain sentry, formerly the Food Pyramid, was on the run from the law when he was introduced, having been framed by the International Culinary Institute in an attempt to preserve the doctrine of the food groups.
Note that shapes made of combined equilateral triangles are also called polyiamonds.