isosceles

Friend-of-The-Riddler Dean Ballard explored non-isosceles sets in three-dimensional grids.

It’s worth noting that many of these sets were rotations or reflections of each other, meaning if one of them was anti-isosceles then others were as well.

Here are examples of the largest non-isosceles sets for the 5×5 grid and the 6×6 grid, which had seven and nine points, respectively.

If the distances between any two of these were the same, the entire set could not be anti-isosceles.

That meant there were four equilateral triangles plus 18 isosceles triangles, or 22 triangles in total.

A gaily coloured hat hung from one of the boats, and over each floated a red flag shaped like an isosceles triangle.

Salvage boat take position at apex isosceles triangle 27.6 degrees with lighthouse and summit hill a mile to the south.

A narrow channel running from the Dorsolum to the Abdomen in Coleoptera, forming an isosceles triangle reversed.

So they crept up to the fire in the formation of an isosceles triangle.

Then ask them if they are equal-legged (isosceles) triangles.