equilateral

One way was to have three of them all on the same face, forming an equilateral triangular base.

So if five of the edges had the same length — meaning the sixth edge was the only one with a potentially different length — that meant the two faces not straddled by this sixth edge were equilateral triangles.

At this point, you could think of the crystal as two equilateral triangles connected by a common edge.

For example, if you had three pennies in your pocket, then you could buy three strings that were each 1 cm long and form an equilateral triangle.

Three of them were flat on the ground, with their corners touching and enclosing an equilateral triangle.

Equilateral can be read as a parable of the ways we blind ourselves through vanity, love, and greed.

The Khedive of Egypt persuades himself that the success of the equilateral will silence his local political rivals.

A third game was called trign, and was played by three persons, stationed at the angles of an equilateral triangle.

I mean of course by the relative pointed, the entire group of which the equilateral arch is the representative.

It is built in the figure of an equilateral triangle, having one of its angles pointing towards the sea.

This consists of three plane mirrors so arranged that a cross-section of the three forms an equilateral triangle.

My legs and thighs first formed an obtuse angle, afterwards an equilateral angle, and at length, an acute one.