Any triangle, and all triangles.
Any polygon can contain acute interior angles.
-- all four interior angles add up to 360 degrees-- any pair of adjacent angles adds up to 180 degrees-- the members of either pair of non-adjacent angles are equal
Interior angles of any quadrilateral always total 360o.
The 3 interior angles of any triangle add up to 180 degrees
Any triangle, and all triangles.
Any polygon can contain acute interior angles.
-- all four interior angles add up to 360 degrees-- any pair of adjacent angles adds up to 180 degrees-- the members of either pair of non-adjacent angles are equal
The sum of the interior angles of ANY triangle is 180 degrees.
Interior angles of any quadrilateral always total 360o.
The 3 interior angles of any triangle add up to 180 degrees
The 3 interior angles of any triangle add up to 180 degrees
Although a triangle must have at least two acute interior angles, a square has four interior right angles and no acute angles. And as regular polygons have increasing numbers of sides, their interior angles get larger.
The 3 interior angles of any triangle add up to 180 degrees
The total interior angles of ANY quadrilateral is 2*pi radians (360 degrees).
The sum of the interior angles of any triangle, including and equilateral triangle, is 180 degrees.
The interior angles total up to 180 degrees and the exterior angles total up to 360 degrees.