The sum of the interior angle of a 10-sided polygon is _______

Sum of all interior angles of a n sided polygon is _______ .

Sum of interior angles of a 9 sided polygon are

Find the sum of the interior angles of the an 8-sided polygon.

The sum of interior angles of a polygon of n sides is __________right angles.

We know that the sum of the interior angles of a triangle is 180^0 . 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.

We know that the sum of the interior angles of a triangle is 180^0 . Show that the sums of eth interior angles of polygons with 3,4,5,6, sides for an arithmetic progression. Find the sum of the interior angles of or a 21 sided polygon.

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.