What polygon has less than 90 degrees?

Answer 1

A polygon that has interior angles less than 90 degrees is typically referred to as a "convex polygon." In a convex polygon, all interior angles are less than 180 degrees, and hence, they are also less than 90 degrees. Examples of convex polygons include triangles, squares, pentagons, hexagons, and so on, where all angles at each vertex are less than 180 degrees.

Answer 2

Assume you are referring to polygons with interior angle measuring less than 90°

There are few shapes that have that measurement. They are:

• isosceles triangle with no obtuse and right angles
• equilateral triangle