60 degrees and it is an equilateral triangle.
It will be an equilateral triangle and each interior angles measure 60 degrees.
Either could have a larger interior angle. If they were regular, then the interior angle of a triangle would be 60 degrees whereas that of a heptagon would be 128.57 degrees. The REGULAR heptagon would have a larger interior angle than a REGULAR triangle.
It's 180 degrees for any triangle, regular or not.
It is 60 degrees.
Each interior angle will measure 162 degrees
Each of the interior angles of an equilateral triangle is 120 degrees.
3 and it will be an equilateral triangle