" Prove that the sum of angles of a triangle is "180

Set up an equation in the following cases: In an isosceles triangle, the vertex angle is twice either base angle. (Let the base angle be b in degrees. Remember that the sum of angles of a triangle is 180 degrees).

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

Solve the following: In an isosceles triangle, the base angles are equal. The vertex angle is 40^@ . What are the base angles of the triangle? (Remember, the sum of three angles of a triangle is 180^@ ).

In an isosceles triangle, the base angles are equal.The vertex angle is 40^@ .What are the base angles of the triangles? (Remember the sum of three angles of a triangle is 180^@ )

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