Select all of the ways you can describe the given polygon. acute
isosceles
scalene
regular
irregular
obtuse
right
equilateral
equiangular

>regular triangle, we call equilateral triangles regular polygons.

>isosceles,  as an equilaterial triangle is a specific type of isosceles due to       more than one side being of equal length and angle.

>equilateral,  where all sides and angles are the same.

>acute,    as all 3 angles are less than 90

>equiangular.   equilateral triangles are also described as equiangular.