A Triangle is defined as a polygon that has three sides and three vertices. The sum of its interior angles is 180 degrees.
An Equilateral triangle is a triangle whose three sides have equal length.
If a polygon is equiangular, then all its interior angles have the same measure.
Based on the explained above, if a triangle is equiangular and equilateral, then its interior angles have equal measure and its three sides have equal length.
Since its three angles have equal measure, and you know that the interior angles of a triangle add up to 180 degrees, you can calculate the measure of each angle of a triangle that is equiangular and equilateral, as following:
Therefore, the answer is:
