Prove that, in `n` point star sum of all the angles at its vertices is `(n - 4)xx180^@.`

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

Prove that the sum of all the angles on the same side of a given line is 180°.

Sum of all the interior angles of a quadrilateral is 180^(@) ?.

Prove that sum of all the interior angles of a pentagon is 540^@ .

The sum of all the angles at a point is . . . . . . . . . . . .

We prove the statement "sum of interior angles of a triangle is 180^@ " by

Whether the sentence is statement: The sum of all interior angles of a triangle is 180 degree.

In adjacent figures find the magnitude of each of the three angles formed. (Hint: Sum of all angles at a point on a line ais 180^@ .