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

Change into indirect speech The teacher said, "The sum of three angles of a triangle right angles."

The sum of the three angles of a triangle is 180^(@)

The sum of the measures of three angles of a triangle is greater than 180^@

The sum of two angles of a triangle is equal to its third angle.Determine the measure of the third angle.

The sum of two angles of a triangle is equal to its third angle.Determine the measure of the third angle.

Show that if sum of the two angles of a triangle is equal to the third angle then the triangle is right angled triangle.

Can the sum of the two angles of a triangle be less than the third angles?

The sum of two equal angles of a triangle is equal to its third angle.Determine the measure of the third angle.

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