Find the sum of the interior angles of a polygon of 8 sides.

Find the sum of the interior angles of the polygon gives below.

Sum of interior angles of polygon

In an n-sided regular polygon, each exterior angle is 72^(@) . Find the sum of all the interior angles of the polygon.

What is sum of the interior angles of a regular polygon of n sides?

What is the sum of all interior angles of a polygon of (i) n sides (ii) 7 sides (iii) 8 sides (iv) 10 sides ?

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.

The sum of the interior angles of a polygon is five times the sum of its exterior angles. Find the number of sides in the polygon.