First, here's an isosceles triangle, it has two equal length sides and two equal angles. Oh! Very clever! Now we have an equilateral triangle. Three sides of equal length andall the angles are 60 ...

Ambrose: 50 pizzas? Customer: But I don't want round ones, too boring. I want equilateral triangles. Ambrose: Equal whately twangles? What? Customer: Equilateral triangles. It's a triangle where ...