Question

Choose the words that describe the quadrilateral at the right: Concave, Convex, Equilateral, equiangular, and regular.

Answer 1

The sides are all equal, so we can classify this quadrilateral as "equilateral".

As the four angles are not equal, it is not equiangular, therefore is not regular.

It can also be classified as "convex", as it has no outside diagonals (all diagonals that can be drawn are inside the polygon). Therefore, is not concave.

Answer: the quadrilateral can be described as equilateral and convex.