Sum of angles of a triangle

Classify the following statements under appropriate headings. (a) Getting the sum of angles of a triangle as 180^@ . (b) India winning a cricket match against Pakistan. (c) Sun setting in the evening. (d) Getting 7 when a die is thrown. (e) Sun rising from the west. (f) Winning a racing competition by you.

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 their difference is 24^(@) . Find the measure of each angle of the triangle.

Sum of any two angles of a triangle is always greater than the third angle.