Sum of angles of a triangle

Sum of angles of triangle ABC is 180^(@) . Express the statement using symbols.

The sum of the angles of a triangle is .......

The sum of the angles of a triangle is .......

The sum of the angles of a triangle is two right angles or 180^(@).

The sum of two angles of a triangle is 80^(@) and their difference is 20^(@). Find all the angles.

The sum of two angles of a triangle is 80^(@) and their difference is 20^(@). Find all the angles.

Theorem 6.7 : The sum of the angles of a triangle is 180º

The sum of two angles of a triangle is 116^@ and difference is 24^@ . Find the measurs of each angle of the triangle.