[" 230.Show that sum of the three angles of a triangle is "180^(@)" ."],[" OR "]

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

Prove that the sum of the three angles of a triangle is 180^(@).

Prove that the sum of the three angles of a triangle is 180^0dot

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

Write the following statements as formulas Sum of the three interior angles of a triangle is 180^(@) .

We know that the sum of the interior angles of a triangle is 180^(@). Show that the sums of the interior angles of polygons with 3,4,5,6 sides form an arithmetic progression.Find the sum of the interior angles of a 21 sided polygon.

State whether true or false Sum of the three exterior angles of a triangle is 180^(@)