If that yield sign were a equilateral triangle, then it would be a regular polygon. In that triangle, each angle would equal 120°.
If the yield sign is a regular polygon and is then a equilateral triangle, then each angle would be equal to 60 degrees
A yield sign typically has the shape of an equilateral triangle. Each angle in this triangle measures 60 degrees. Therefore, the measure of each angle in a yield sign is 60 degrees.
;